1. Look at the belly button

When I was pregnant before, many expectant mothers would discuss the shape of the belly button and the line below it as a way to determine the sex of the fetus. Many people believe that the belly button is concave inward is a boy, convex outward is a girl; the belly button line is long and thin is a boy, the belly button line is short and thick is a girl.

But this method is only heard, after all, there is no scientific research to prove, so we can not use this to determine the sex of the fetus.

2. Look at the fetal heart rate

This is a saying that many mothers hear, so they make a point of keeping an eye on the fetal heart rate after the ultrasound. Some people believe that a boy is born with a fetal heart rate below 140 beats per minute, while a girl is born with a fetal heart rate higher than 140 beats per minute, which is actually unscientific.

Because as far as the normal situation is concerned, the heart rate of men is originally lower than that of women, but there is no difference in the fetal heart rate when they are still fetuses, so this is also an uncertified rumor.

3. Look at the early reaction to pregnancy and vomiting

Pregnancy and vomiting is a symptom that occurs in most pregnant women, especially in the early stages of pregnancy, due to the rapid rise in the level of human chorionic gonadotropin, the body's gastric acid secretion is reduced, gastrointestinal peristalsis is reduced, which makes a lot of pregnant women do not have an appetite, can not smell a lot of smells, and easy to be nauseous and vomiting.

Many elderly people will be based on the severity of the pregnant woman to determine the sex of the fetus, such as pregnancy and vomiting reaction is generally less boy, pregnancy and vomiting reaction is a girl, this argument, although common, but also not proven.

In fact, everyone's body is different, the performance of the pregnancy is also naturally different, just one based on the severity of the pregnancy to determine the sex of the fetus is very rigorous.

4. Look at the shape of the stomach

This is a situation that many pregnant women have encountered, and sometimes when they meet an acquaintance on the road, he will give you a large amount of your stomach, and then judge whether it is a boy or a girl.

People usually think that the stomach against the upper, round, taut is a boy; while the stomach against the lower, partial oval is a girl, in fact, this argument also ignores the pregnant woman's own body shape, fat and pelvic issues, so it is also unscientific.

It is important to realize that everyone's body shape is different, and the shape of the pelvis is different, so the shape of the stomach will be different, so this argument is not reliable.

5. Look at the areola color

In the middle and late pregnancy, pregnant women's areola color will occur white which pot, which is mainly caused by the pregnant women in the body of luteinizing hormone to stimulate the melanocyte hormone level increases. For this reason, people also produced a statement ah, areola color darker is a boy, and areola color change is not big is a girl, this statement is actually not scientific.

Because each pregnant woman's body is different, the secretion of the level of progesterone is also different, then naturally the impact on the areola color is deep and shallow, so the areola color alone is unable to determine the sex of the fetus.