Table of contents:
- What determines the sex of the baby
- Scientifically proven methods
- Methods without scientific proof
- How to get pregnant faster
For many years humanity has tried to choose the sex of babies, whether for social reasons or just an old desire to have a boy or a girl.
However, there are several ethical issues associated with baby sex selection, and for that reason, the medical community has not yet authorized the use of gene editing or sperm selection techniques for this purpose.
For this reason, the search for natural methods that can help you get pregnant more easily with a girl or a boy has increased. Below, we show you some natural methods that seem to be confirmed by science and that help you get pregnant with a girl, as well as those that seem to have no foundation or that, at least, have not yet been studied.
If you're trying to have a boy, check out the proven methods to get pregnant with a boy
What determines the sex of the baby
The baby's sex is genetically determined through the presence of a pair of chromosomes, scientifically called sex chromosomes, which can be of two types: X or Y. When the baby has a pair of X chromosomes, that is an XX pair means it's a girl, if you have an XY pair, it's a boy.
Since the mother is always female and therefore has only type X chromosomes in the egg, the baby's sex is determined by the father's sperm, which can be either X or Y. Thus, if the sperm is X, the baby will be a girl (XX) and if it is Y, it will be a boy (XY).
Scientifically proven methods
There are few studies on the effectiveness of natural ways to choose the sex of the baby, and most of them were carried out many years ago. Still, there are a few theories that seem to help anyone looking to get pregnant with a girl, and they include:
1. Having intercourse 2-4 days before ovulation
This theory first emerged around the year 1970, when it was first discovered that type Y sperm have a shorter lifespan than type X. This implied that the further away from ovulation the If a woman had sex, there seemed to be a lower tendency to have a boy, as type Y sperm could not survive long enough to fertilize the egg.
In 2010, a study done in the Netherlands showed that this theory seems to be true, as it had a high success rate to have girls in couples who had sexual activity only 2 to 4 days before ovulation.
How to do it: a woman should have intercourse only 2 to 4 days before ovulation, avoiding having sexual contact after that period. This method works best for women with a regular cycle, as they can more accurately predict the day of ovulation.Check out how to find your ovulation day.
2. Increase calcium intake
Being careful with the type of diet as a way of having a girl is another very old theory, which appeared when it was observed that in some aquatic mammals the type of diet the mother eats seems to influence the sex of the baby.
Furthermore, in a survey conducted in the United Kingdom, where more than 700 couples were interviewed, researchers found that the concentration of some minerals in the diet also appeared to affect the sex of the baby, as women who were fed richer in calcium and magnesium seemed to have more daughters than sons.
The nutrition hypothesis was studied more recently in 2010, in the Netherlands, where another study, involving more than 100 couples, confirmed that women who had a higher concentration of calcium in the body, after increasing consumption of this type of food as well as supplementation with the mineral, had a high success rate in having a girl.As for magnesium, no relationship was found.
How to: women who are trying to conceive a girl can increase their calcium intake, giving preference to foods such as cheese, milk or almonds, for example. This type of diet should be started between 5 and 9 weeks before the moment you intend to get pregnant, as this was the time used in the 2010 study. Check out a list of the foods richest in calcium.
3. Having sex 1 to 3 days before peak day
Peak day is a concept that was first introduced in the Billings method, which is a method widely used by women trying to increase their chances of getting pregnant. In this method, the woman must evaluate the type of mucus that is released by the vagina, in order to identify when she is at her most fertile, since the characteristics of this mucus vary throughout the menstrual cycle. The peak day corresponds to the last day when the mucus is more liquid and which usually happens about 24 hours before ovulation.
According to the peak day theory, women who have sex before that day are more likely to have a girl, while women who have sex after that day are more likely to have a boy.
This theory was confirmed in 2011 in Nigeria, where a study, done based on the peak day method, demonstrated a success rate of over 85% to get a girl having intercourse 1 to 3 days before that day. This theory also seems to fit right with the theory of having sex 2-4 days before ovulation, as peak day happens about 24 hours before ovulation.
How to: to have a girl following this theory, a woman should have sex only 1 to 3 days before peak day. To have a better chance of success, the woman should also know the Billings method, which helps to identify the peak day.
Methods without scientific proof
There are still other methods that have been used since antiquity, but that do not have scientific proof or that have not yet been studied. These include:
1. Use Chinese table
This is one of the methods that has no scientific proof and which consists of using a Chinese astrology-based table to try to predict the sex of the baby according to the month of conception and the lunar age of the woman. This table, according to some legends, was used by a Chinese king, who used it to ensure that he always had male heirs.
However, in a study carried out between 1973 and 2006, its effectiveness was denied and, therefore, this method does not have any support from the scientific community. Understand better what the Chinese table theory is and why it doesn't work.
2. Having orgasm at the same time or after your partner
According to this theory, if the woman has an orgasm at the same time or after the man, the Y sperm have greater difficulty in reaching the egg first, since the vaginal pH will be more acidic, which favors the X sperm, which give birth to girls.
This theory seems to be defended by some gynecologists and obstetricians, however, there is no recent research that confirms this result.
3. Getting under your partner during sex
According to this method, if the woman is under her partner during sex or in another position where penetration is less deep, the X spermatozoa seem to be favored, and they manage to fertilize the egg before the Y sperm.
Although it is based on a true theory, there are no studies on the relationship between the position of sexual intercourse with the success of getting a girl or boy. Thus, this theory can be used, but has no scientific proof.
How to get pregnant faster
To get pregnant fast, the most important thing is not to have any gynecological disease, as well as having sexual intercourse during the fertile period. Enter your data into the calculator below to find out the best days to get pregnant:
Check out some other tips to get pregnant faster.