1. Detection of fetal heart rate: When the fetal heart rate is detected to be strong and slow, the probability of pregnant mother carrying a boy is very high. If the fetal heart is weak and fast, it is likely to be pregnant with a daughter.
2. Observe the vomiting phenomenon: pregnant mothers hardly vomited during the early pregnancy when they were pregnant with boys. When pregnant with a girl, pregnant mothers often have symptoms of morning sickness in the first trimester.
3. Observe the changes of the pregnant woman's belly shape: If the pregnant woman's belly shape is pointed, there is a great chance of having a boy. Once a pregnant woman's belly is round, the chances of having a girl will be greater.
4. Changes in eating habits: The eating habits of pregnant women will change during pregnancy. The taste of the mother who is pregnant with a boy has changed to like to eat sour or sweet, and the mother who is pregnant with a girl likes spicy food very much.
5. Observe the breast changes: When the areola is dark, there is a greater chance of having a boy. When the breast is enlarged obviously, especially when the left breast is larger than the right breast, it is likely that a girl is pregnant.
6. Weight gain of pregnant mothers: When pregnant mothers have obvious weight gain in waist, hips and buttocks, it is more likely to give birth to girls. The pregnant mother's stomach and chest have obviously gained weight, so it is likely to be pregnant with a boy.
7. Observe the appearance and skin changes of pregnant women: pregnant mothers will have smoother skin and more beautiful appearance when they are pregnant with girls. When the mother's appearance becomes ugly, her skin becomes rough, and even when she has acne, the chances of having a boy are very high.