4hw.com.cn: pregnant vomiting is a more painful thing for women during pregnancy. Many people will judge the sex of the fetus through the condition of pregnant vomiting. Is it reliable? What are the methods for identifying the sex of the fetus?
Is it a boy or a girl
It's all girls who have bad pregnancy and vomiting, and boys who have no reaction or just retch.
Cause: some recent statistical reports show that the more serious early pregnancy reactions such as vomiting and nausea, the greater the chance of giving birth to a baby girl. Among them, 5900 pregnant women admitted to the hospital due to severe reaction during the first trimester of pregnancy, 56% had girls and 44% had boys. However, in the middle and later period of pregnancy, the sex ratio of the baby is similar to the normal distribution ratio.
Note: for some pregnant mothers, the feeling of nausea is most severe in the morning, and then gradually reduces in the day. The term "morning sickness" is not very accurate, because it may come at any time and last for a whole day. All boys and girls are the same.
Methods of fetal sex identification
There are four methods to identify the sex of fetus in the world: amniocentesis, chorionic villus sampling, DNA blood identification and B-ultrasound. It depends on whether X sperm or Y sperm are involved in fertilization. However, the combination of sperm and egg is random and does not transfer according to people's will. Up to now, human beings have basically no control over the birth of boys and girls. From a macro point of view, we should not interfere with the birth of boys and girls. Nature has long arranged that men and women account for roughly half of human gender.
Factors affecting fetal sex
Age factor
There is a theory that the older you are, the more likely you are to have a daughter. This is because the number of Y chromosomes in men will decrease with the increase of age, so the probability of having a girl is particularly high. The older a woman is, the alkaline secretion in the uterus will gradually decrease due to the effect of aging, and the probability of having a girl will also greatly increase.
Occupation factor
Statistics show that if the husband is a professional driver, pilot, anesthesiologist, deep-sea diver, the probability of giving birth to a girl is particularly high. The more stressed the husband is at work, the more likely he is to have a girl. This is because testes are affected by strong changes in air pressure, temperature or water pressure, or they inhale too much toxic anesthetic gas, or under working pressure, y staining, which has a relatively weak vitality, will die first, resulting in more chances of giving birth to girls.
Acid and alkali factors
In the environment with different pH values, the swimming speed of X and Y chromosomes is different: Y chromosome is more active in alkaline environment, while X chromosome is more active in acid environment. So, if the couple wants to have a girl, they can dilute the acetic acid with a small amount of clean warm boiled water, and then wash the vagina to make it acidic. On the contrary, boys are born.