At all times, women wanted to know what gender they were carrying. And the best thing is to be able to "order" the floor. This is especially true for those who are already raising children of the same gender and really want a toddler of the opposite sex. It is in such situations that a feverish search for methods and ways to guess the crumbs with the floor begins.
The "all-knowing" Internet is ready to provide many different ways to determine the sex of a child by the date of conception, by some properties and characteristics of the parents' blood, and even by the mysterious methods of Freiman-Dobrotin and Budyanskikh. How these methods work, are there any 100% reliable among them, what to believe - we will answer these questions within the framework of this article, consider all known methods and analyze the results.
How is the sex of the child formed?
To better understand the essence of different methods, as well as to understand whether they are effective, you need to understand how the baby's sex is formed. Even from school biology lessons in high school, everyone knows that two sex gamete cells take part in the conception of a new person - male (sperm) and female (egg). Each of these cells has its own genetic makeup. A sperm cell can have a set of XY and XX. The female egg always carries only the XX set.
If the gender of the future baby depended only on the woman, as some say, then only individuals with a set of XX would be born, that is, only girls. No options. But nature took the side of diversity and gave the right to bear responsibility for the sex of the offspring to men. If a female egg is fertilized with sperm with a set of XX, a girl is born. If fertilization takes place with the participation of the germ cell of a man with an XY set, a boy is born. No other is given.
It turns out that the sex of the baby is predetermined even when the parents do not yet realize that they will soon become parents, that is, from the first seconds after one of tens of millions of sperm cells manages to break through the "armor" of the egg and penetrate under the oocyte membranes. XX or XY - nature decides, by and large, nothing depends on the man or woman in this matter.
Sex cannot change, since genetically the set brought by sperm is not subject to any influences. The maternal and paternal chromosomes fuse to form a new organism. And from the first minutes after conception, every little thing is determined: at the genetic level it is obvious what the child's eye color will be, the color of his skin and hair, height and complexion, what inherited diseases he will have and even character traits, talents and abilities.
The sex glands in the embryo form from 5-6 weeks of pregnancy. Mom still wonders if she is pregnant, does tests and rejoices at the stripes, and the baby is already beginning to form prototypes of glands, which will later become ovaries in girls or testicles in boys. There are no external differences in fetuses - boys and girls have a small genital tubercle where the external genital organs are to form later. This happens until about 12 weeks of gestation. Then the organs only grow and increase in size, opening up possibilities for diagnosis through ultrasound.
The optimal period at which the genitals of the fetus are visible in the best way is considered to be from 16 to 22 weeks of pregnancy. Up to 16 weeks, the baby is small, and after 22 weeks it becomes large and can be grouped in such a way that the genitals are closed from view. The accuracy of the study decreases. In the period indicated by us, it reaches 90-93%.
But until the middle of pregnancy, waiting for the expectant mother is often unbearable. I want to know gender earlier, and sometimes even before conception. And therefore, a lot of questions arise, many myths are born around sex determination at the earliest possible date or during planning. This behavior is characteristic not only of modern women, their distant ancestors also sought by any means to find out the gender of the heir. Some had to necessarily give birth to a boy, the successor to the dynasty, the throne, or for religious reasons. Others dreamed of a daughter and tried in every possible way to find out how to conceive her.
In their attempts, women drank the blood of sacrificial animals, went to seers and sorcerers, read the stars and omens, ate special food and drank decoctions of herbs. They are forgiven, because then they did not yet know that what a woman had drunk and eaten could in no way affect the genetic makeup of the male reproductive cell. Today women, although they are savvy in matters of medicine, have an education, continue to persistently demand an effective method to determine the sex of the baby. Let's take a look at the methods that are commonly used for this.
Blood renewal method
The method is based on the assumption that human blood is able to renew itself and does it at certain intervals. It is assumed that for the stronger sex this happens once every three years, and for women - once every four years. The authors of the method, whose names were not included in history, argue that it is possible to conceive a girl when the mother's blood has been renewed last, that is, it is younger than the blood of her partner. To conceive a boy, according to the method, the opposite condition must be met - the father's blood must be "younger".
In fact, the method is a great way to develop logic and thinking. Brain training will be given by mathematical calculations, because in order to understand whose blood is "younger", it will have to be properly counted.
You can start from birth. A man's age is divided by 4, and a woman's - by 3. But everything is not so simple here. There is too much to consider. So, an operation, even a small one, blood transfusion, donation, large blood loss during injury or trauma practically "zeroes" all the blood renewal cycles that were before, and everything starts from scratch.
It works like this. If a woman is 24 years old, and her man is 28 years old and none of the partners became a donor, did not tolerate blood transfusions and did not undergo operations, then 24 should be divided by 3, and 28 - by 4. We get the number of updates from a woman - 8 , for a man - 7. The last update took place in a man, and therefore there is a high probability of having a boy.
Now let's imagine that a woman had surgery a year before pregnancy. Her blood with the same number of 8 will be younger, and, according to the method, there is more chance of giving birth to a daughter. If, three years before conception, a man got on the operating table, then the chances of having a boy grow again.
We assessed the effectiveness of the method based on reviews on the Internet, since there are quite a few "agreed - not agreed" on the forums. For the most part, opinions are divided. The presumptive accuracy of the sex prediction method based on blood renewal is no higher than 50-55%. With the same success, you can not count anything and not do an ultrasound. Any pregnant woman has a 50% chance of giving birth to either a boy or a girl. The third, as they say, is not given.
What does traditional medicine think about the method? Absolutely nothing. The theory of blood renewal is not reflected in scientific works on medicine, it actually does not exist. What the authors of the method had in mind when speaking of "renewal" is also not entirely clear to doctors. There is such a concept as "hematopoiesis", but its renewal can be considered rather conditional. Hematopoiesis is the formation of blood cells by the bone marrow with the participation of the lymphatic system. This process is daily, continuous, if it happens every few years, the person would not survive. Blood does not undergo any other renewal not once in three years, not once in four years.
In addition, hematopoiesis proceeds in exactly the same way for people of different sexes and ages, which gives the right to assert that it has nothing to do with reproduction: the blood is renewed every minute in any person - an infant, a teenager, an old man. While a person is alive, hematopoiesis is present. Therefore, we cannot classify the method of blood renewal as accurate.
Determination by Rh factor and blood group
For some reason, the authors of this technique also wished to remain anonymous. But the legacy left to the suffering an amazing theory, the essence of which boils down to the fact that the blood type of parents directly affects the sex of the unborn child. So, it is assumed that a woman with the first blood group and her partner with the same blood group usually have girls. If the owner of the first blood group wants to give birth to a son, she will have to find a partner with the second blood group.
Almost the same picture is with the Rh factor. The authors of the method are confident that an Rh-negative woman can expect to have a daughter only from a Rh-positive man.
What these conclusions are based on is not explained. But from myself I want to say that the author of this article has the first blood group with a similar group with a partner. It would seem that she should live in a flower garden of girls, but there are three guys in the family. One puncture can be considered an accident, but three in a row - hardly. Moreover, the theory cannot explain how to understand the birth of the same pair of children of different sex.
According to reviews, the reliability of the method is extremely low. Even those who like to calculate and assume admit that the methodology does not stand up to criticism. There are few positive reviews. We can estimate the reliability no higher than 25%.
Traditional medicine does not exclude such a method and does not even suspect. No doctor's textbook or nurse's handbook describes the quality of sperm or eggs in relation to blood type. In men with the first and second groups, with the third and fourth, as well as with both variants of Rh-affiliation in the seminal fluid, there is an approximately equal ratio of sperm with the genetic set XX and XY. Therefore, the chances of conceiving girls and boys are approximately equal.
The group and Rh of a woman are only important for the well-being of bearing the fetus (with a negative Rh factor, the expectant mother may develop an immune conflict with the erythrocytes of a fetus conceived from a Rh-positive man). The group and Rhesus cannot affect either the reproductive abilities of a woman or the sex of the child.
Determination by date of conception
The moment of conception at all times was given special importance. Astrologers and numerologists believe that from this moment the natal chart of the future member of society begins. By the date of conception, the destiny was determined, and they also sought to understand whether it was a boy or a girl. There are several methods based on the day of conception, all of them are quite popular among women. Let's take a closer look at them.
Chinese calendar
Science does not know for certain where and when the Chinese table for determining the sex of the unborn child appeared, but there are assumptions that it was created on the basis of knowledge of Chinese culture and history. The Chinese, it should be noted, in general, tend to check everything with the calendars - lunar, agricultural, astrological. During the wars of dynasties for territoriality, the birth of boys was especially welcomed. Therefore, you can find information that the creation of the calendar just refers to those distant events that took place about seven hundred years ago.
The calendar, according to popular legend, was discovered by archaeologists during the excavation of an ancient temple near Beijing. They say that it was carved in stone and had signs suggesting that it belonged to the imperial court. This is nothing more than a beautiful legend. There was no Gregorian calendar in China in the 14th century, and the table was compiled using such months. In addition, the find (stone slabs) never entered any museum in the world. Therefore, the Chinese calendar is quite possibly not Chinese at all, and not even a calendar, but it is in demand among women.
The method is based on gender prediction by the age of the mother and the month of conception. It is assumed that at different ages a woman has different chances of having a daughter and a son. Age, of course, leaves an imprint on a woman's fertility; it has been scientifically proven that women after 35 years have a higher chance of giving birth to twins. But with the floor, everything is not so simple.
Not everyone knows how to use a Chinese table, despite the fact that finding it on the Internet will not be difficult. To calculate the sex of the baby, you need to know the woman's lunar age. They are considered to be age not from the first cry in the hospital, but from the moment of conception of a person. If a woman is 22 years old according to her passport, then in the lunar equivalent it will be 22 years and almost 10 months. In the calendar, in the “age” column, you need to find the number 22. If a woman is 22 and a half years old according to her passport, then her lunar age will be 23 years and 4 months, and therefore in the “age” column you need to find the number 23.
Keep in mind that you could have been born early, for example, seven months or eight months. In this case, you need to add not 10, but 7 or 8 months to your age. Clarify the circumstances of your own birth with your closest relatives and only after that, if you decide to use this technique, proceed to the calculation.
The rest is simple. Opposite the age you have chosen, the sex of the child will be indicated, depending on which month the conception took place or is just planned. Please note that you need to determine exactly the date of conception, and not the month in which the last menstruation began. It so happens that menstruation begins at the end of July. And the woman thinks that July should be chosen in the table. But ovulation happened already in August, and therefore it is more correct to choose August opposite your lunar age.
Determining the gender of your baby using the Chinese calendar is easy. But how reliable is it? Women can be misled by statements about the reliability of the method at the level of 70-80%. This is not true. First, this table does not take into account the age and other characteristics of the father, but nevertheless it would be more logical, because the sex of the child does not depend on the woman. According to reviews, the honest efficiency of the method is at the level of 50%, as well as without calculations at all. Either a boy or a girl.
Official medicine does not take the Chinese calendar seriously, does not attach any importance to it. But if a woman, especially a pregnant woman, really wants something, then it is better to give it to her. Therefore, the Chinese table is an excellent psychotherapy in anticipation of a deadline that will make it possible to find out the gender by ultrasound, if not 100 percent, then at least 90.
Japanese calendar
It is not known for certain where and when the Japanese calendar appeared, since there is no reliable information about this. According to one of the legends, astrologers in the land of the rising sun watched the movement of stars and planets for a long time and, as a result, came to the conclusion that the dates of birth of men and women determine the sex of their offspring. The secret knowledge was brought to the emperor and passed on to women in the imperial family, since the Japanese rulers only needed sons.
The ancient origin of the Japanese table raises the same reasonable doubts as the origin of its Chinese "friend". But pregnant women, who want to know the sex of the baby within three weeks after conception at any cost, are not very interested in the historical background of the methods.
Unlike the Chinese table, the Japanese calendar also considers the father as a direct participant in the conception process. In total, it uses three criteria: the date of birth of the mother, the date of birth of the father and the date of conception of the fetus.
In the first table, you need to find the month of birth of the father and the month of birth of the mother. At the intersection of a row and a column, a certain number will be found, which is called the coincidence number. We remember this number and move on, go to the second table.
It presents the months of conception in relation to the received coincidence number. It is necessary to find a match at the intersection and it will become clear whether to expect a daughter or a son in the near future.
Despite the absurdity of statements about a certain dependence and cyclicality in the genetic set of gametes from the age of the mother and father, the reviews about the Japanese table, oddly enough, are rather positive. Women point out that the probability of planning the sex of the baby for it, of course, is not one hundred percent, but quite often the end result "coincides" with the prediction. There are more than half of such reviews, and therefore the reliability of the method can be assessed at a record 60% for its analogues.
Official medicine is adamant - geneticists do not see any connection between age, date of conception and the sex of the child. With age, the balance between sperm with XX genetic information and cells carrying the XY genetic set does not change in the total sperm count of a man. This means that the probability of conceiving a boy or girl does not increase or decrease in a 40-year-old man compared to a 20-year-old.
By ovulation
This method is as close as possible to traditional and official medicine, but again only operates with certain terms, without substantiating speculation. Everyone knows that getting pregnant is only possible during ovulation. In women with a 28-day classic menstrual cycle, ovulation usually occurs on the 14th day after the start of the last menstrual period. In women with a different cycle duration, ovulation also occurs in the middle of the cycle. Ovulation is just a day, maximum - two days. That is, a woman is fertile only 1-2 days a month.
The method of conception by ovulation is based on the assertion that XX and XY spermatozoa have different life spans, and also have different speeds when moving. Thus, it is believed that XY ("boyish") gametes move faster, but they are less tenacious. And XX cells are less mobile, but they can survive for a long time, waiting for a convenient day - the day of ovulation, when the egg cell leaves the follicle and becomes available for fertilization. According to the method, favorable days for conceiving a boy are the days of ovulation and the day after it, and in order to become the mother of a girl, a woman is invited to have unprotected intercourse before ovulation in a couple of days, so that the XY spermatozoa die by the time the egg is released, and only the more tenacious XX remain.
The ovulation table for conception, in theory, should be in the purse of every woman who is planning a pregnancy. It can mark the days of the most likely conception of a girl or boy.
Reviews of the method are mixed. The votes for “agreed” and “did not agree” are distributed in approximately equal proportions. This allows us to judge that the reliability of the method does not exceed 50-55%. Then the question naturally arises, why is the method considered paramedical? The fact is that the essence of the method - the difference in the characteristics of spermatozoa with a different set of sex chromosomes is far-fetched. Reproductive specialists, no matter how hard they tried, found no differences in their speed of movement, as well as in their ability to survive.
The only thing that cannot be doubted is the ability of male germ cells to patiently "wait" for ovulation in the fallopian tubes. Sexual intercourse a few days before ovulation (3-4 days) may well lead to pregnancy, even if during the ovulation period the couple was protected or did not have sexual intercourse at all. But the gender of the child may be different - in 50% of cases, boys are born, with the same probability - girls.
Freiman-Dobrotin method
In fact, this method will somewhat improve the Japanese calendar, since three indicators are used for the calculation: the date of birth of the parents and the date of conception of the fetus. The difficulty is that you need to know the date of conception, and this is usually difficult, because ovulation can shift, be late, it is almost impossible to determine the date of conception with an accuracy of a day.
Nevertheless, the creators of the method assure that the baby will inherit the sex of the parent whose numerical coefficient at the time of conception will be higher. It should be noted that the calculations are very complex. In the late 90s, the method was founded by Professor S. Dobrotin and tested it on the basis of the Gorky maternity hospital. There was no ultrasound then, and the method proposed by the professor quickly became very popular. A newspaper article about the professor's theory caught the eye of the programmer Mikhail Freiman, and he improved and systematized the calculations. It is he who owns the tables that are used today by those who want to use this method to find out who should be born.
You will have to work with several tables. The first is called paternal. In it you need to find the year of birth of the dad and the year of the conception of the baby. A number appears at the intersection of the column and row. We write it out and conventionally denote it as "number 1".
The second table is also paternal. In it, you need to find the month of birth of the father and determine whether that year was a leap year or an ordinary one. At the intersection we find one more number and write it out - this is "number 2". In the third table, we select the birthday of the child's dad, adjusted for how many days in the month of his birth. At the intersection we find "number 3". In the fourth plate, select the month of the baby's conception. We fix the "number 4". In the fifth table, we select the day of conception and see what coefficient it corresponds to, so it turns out "number 5".
The sixth table summarizes the paternal ratio. Get the sum of the five numbers that we wrote out and fixed earlier and find the coefficient corresponding to the sum in the sixth table. Next, you need to calculate the ratio of the woman. To do this, you need to do the same thing, but only with the six subsequent tables marked as Ж1 - Ж6. Compare the two results. If the maternal number is higher, a girl will be born, if the paternal coefficient is higher, then a boy will be born. If you get two zeros or two identical other numbers, then you should expect the birth of a girl.
Reviews of the method are mixed. Roughly, as with other methods, the probability of coincidence of the prediction with the truth is at the level of 50%, but the calculation process itself is literally bewitching. It is also unclear what to expect for parents who are expecting twins of different sexes, because the method and tables do not have an adjustment for multiplicity and variability.
Budyanskikh method
The Budyanskys are the spouses who were teachers. Over time, they began to notice a certain pattern between the month in which the babies and their mothers were born. As a result, they have taken up information about school students over the past three decades and put together their own method for calculating the assumed gender.
This method is based on the ratio of the maternal date of birth and the regularity of her menstrual cycle. The couple proposed their own menstrual calendar. It has not 12, but 13 months, and each has 28 days. In fact, this is an analogue of the lunar calendar.
According to the calendar, a woman is asked to determine what type of her menstrual cycle belongs to - even or odd. To do this, she just needs to know her own date of birth and year. Nine calendar months or ten lunar months are subtracted from the date and another date is obtained. It is she who should be looked for in the very center of the table. Right and left - corrections for even and odd year of birth (1980 - even, 1981 - odd, etc.).
Owners of an even cycle will have a high probability of conceiving a girl in all even months, and a boy in all odd months. For the owners of an odd cycle, everything is exactly the opposite - a girl can be conceived in odd months, and a boy in even months. That is, the principle of correspondence works - if the month coincides with the type of cycle, a girl is born.
According to reviews, the exact result according to this method is obtained in 52% of cases, in 35% of cases there is no hit, and 13% of women claim that the method was correct only for one of the children, for the other, the calculation turned out to be wrong.
The Budyanskikh method has no medical justification. But scientists have recently discovered that an egg can have different enzymatic potential in different cycles. As a timid assumption, American reproductologists suggested that oocytes themselves "lure" sperm of the desired type - XX or XY. It has not yet been possible to refute or confirm this, but the version has a right to exist.
Folk signs
The search for opportunities to predict the sex of a child before birth has such an ancient history that it has become a truly popular pastime. There are many popular signs by which women tried to guess about the sex of the unborn child. Let's take a look at the most common and popular ones.
Belly shape
The sign says that a round belly is for a girl, and a pointed belly for a boy. Medicine about this superstition answers that the shape of the abdomen does not in any way depend on the sex of the baby.
The abdomen will be of the shape provided by nature, or rather the anatomical features of this woman. If the pelvis is narrow, the babies take a more compact position and the expectant mother's tummy looks rounded. In women with wide hips and pelvis, the abdomen is somewhat "blurred", regardless of the baby of which sex she is carrying at the moment.
Affects the shape of the abdomen and the location of the fetus in the womb. If the baby's back is turned to the right, the belly will be slanted to the right, if it is located head up, the tummy will look slightly smaller.
Even twins cannot always be determined by the shape of the abdomen, because there are very small and tiny babies. The big belly also does not say anything.
The presence of toxicosis
A popular omen says that a woman who is pregnant with her daughter is less susceptible to toxicosis. Her baby is also a future woman, and she is in some way in solidarity with her mother, and therefore will not bother her. But a boy in the womb can arrange a very troublesome life for his parent, especially in the early stages of pregnancy.
Doctors say that the very origin and causes of the development of toxicosis are poorly understood, But nausea, vomiting and changes in the perception of tastes and smells clearly have nothing to do with the floor. There are women who do not experience toxicosis at all, but far from all of them have the daughters promised by the omen on this occasion.
Baby behavior during pregnancy
A popular omen says that boys are more active in their mother's womb, kick more often, and the mother feels the heaviest jabs in the bladder. Girls are calmer, quieter, and if they fumble, then somewhere in the area of the kidneys and liver of their mother.
Doctors categorically reject such claims. The motor activity of the fetus depends on its gender, and on temperament, character and well-being, as well as on a mass of accompanying factors (whether the mother is full, whether she slept well, whether she feels normal, whether the baby has enough oxygen). A healthy child moves quite actively. As for the place of pokes and shocks, obstetricians explain that it depends on the location of the fetus. Where there are legs - there will be stronger tremors, where there are hands - there will be more "swarming". The sex of the fetus does not affect presentation and position in the uterine cavity.
Food addiction
It is popularly believed that the boy's future mother eats a lot from the first days of pregnancy, often with appetite. She prefers meat products, fish, eggs, as well as salty and spicy foods. The girl in the womb, according to the sign, makes her mother eat sweets and fruits. Also, a woman who is to give birth to a daughter, from the first months, becomes her favorite milk diet.
From the end of the third month of pregnancy, babies in the womb really begin to distinguish the nuances of the amniotic fluid that they swallow. And all the puzzlers, without exception, swallow water with a sweetish taste with great pleasure - glucose is pleasant to the child's body even in utero. But boys and girls cannot influence what products a mother chooses for her own nutrition.
Therefore, taste preferences while carrying a child and his gender are incomparable things. There is a theory that a woman intuitively chooses for food that contains the maximum amount of substances she lacks. If a pregnant woman eats chalk, then she does it because of a lack of calcium at the time of intensive growth of the baby's skeletal system, and not at all because the child is a boy or girl.
If you want salted cabbage, so much so that you urgently need to send your husband to the supermarket at 4 in the morning for this cabbage, then most likely the woman does not have enough potassium. The gender of the baby does not affect the nutritional habits and gastronomic preferences.
Beauty and age spots
A popular omen says that women who, after conception, blossomed and prettier, acquired a gentle blush and a brilliant look, will become mothers of boys. Girls, according to legend, take away the beauty of their mothers, and therefore a woman becomes edematous, becomes covered with age spots, suffers from falling hair and brittle nails.
The appearance of a pregnant woman actually changes. But changes occur under the influence of hormones, in particular progesterone. It is he who leads to fluid retention in tissues and the development of edema. It influences the production of melanin and makes it excessive, due to which age spots appear. Pimples in early pregnancy, a blush, a brilliant look are also the merit of hormones that ensure the process of bearing a fetus from conception to childbirth.
The signs that women attribute to the child's gender are thus simply signs of pregnancy. Individual and varied. The gender of the child has nothing to do with it. Increased or slowed down hair growth on the legs and armpits, swelling in the legs or arms - all this has nothing to do with the baby's gender.
Dangerous omens and superstitions
There are signs that can harm a woman. I would like to dwell on them separately. So, for the conception of a girl, some folk "craftsmen" recommend douching with a soda solution before intercourse. Washing the genital tract with soda, in their opinion, reduces the acidity of the vagina, contributes to better survival of "frail" and "dead" XY-spermatozoa. By creating an alkaline environment, they have a better chance of reaching the egg and fertilizing it.
The method is not suitable for a couple who are serious about their upcoming parenting. Even a slight excess of soda in the solution can disrupt the natural balance of bacteria in the vagina, and even if conception takes place, it is possible that immediately after two cherished strips on the test, you will have to go to treat vaginosis.
A decoction of the boron uterus, which is credited with not only miraculous properties to increase fertility, but also an increased likelihood of conceiving a boy, should be taken only on the testimony of a doctor, and not because of a passionate desire to raise a son. It changes hormones and can be quite detrimental to women's reproductive health.
The method of determining sex by perturbations often implies that a woman should lie on her back, in an uncomfortable position for her, and determine in which side the baby is tossing and turning. It is better to refrain from such actions, because the growing uterus strongly compresses the inferior vena cava in the supine position. A woman can lose consciousness, and the baby begins to be active in this position for a reason - he also suffers from impaired blood flow.
The most accurate way
The most accurate way to order the gender of the baby at the planning stage is IVF with genetic preimplantation diagnostics. But embryos obtained in the laboratory from the sex cells of partners are selected by sex, according to existing legislation, only when the birth of a child of a certain sex poses a mortal threat to him, for example, if the mother is a carrier of the hemophilia gene, she cannot give birth to boys, they will be sick.
Doctors select only sex-specific embryos and put them into the uterus. Could there be a mistake? No, because the genetic set of a fertilized egg during the examination is quite obvious, like many hereditary diseases.
A good way to find out the gender of your baby is to have an ultrasound scan. Not 100%, but from 75 to 95% depending on the gestational age. And this is not the 50% accuracy that we talked about when analyzing individual methods and methods above. In addition, an ultrasound scan will answer other questions - is the baby healthy, whether there are twins in the tummy.
Also, the gender from 9-10 weeks of pregnancy with a probability of almost 100% (99.7-99.9%) can be found out by doing a non-invasive prenatal DNA test, which will tell you about the gender of the child and the absence of certain anomalies (or their presence).
When asked what to believe, the answer is quite simple - what you want, as long as it is not harmful to the baby and mother. If a woman adheres to the schedule of visits to the doctor, listens to qualified advice from specialists and, at the same time, in the evenings she wonders on a wedding ring suspended above her stomach, or calculates the sex of the child according to the table, there is nothing wrong. But you should always leave a fraction of the probability for a miracle - sometimes the ultrasound is wrong. Only nature is not mistaken, which will show you exactly who you have. But already in the delivery room.
For information on how to calculate the sex of a child, see the next video.
