When a woman is pregnant with her first and second child, her age and physical condition are different, and each fetus is a special individual, so the reaction of the woman may be different, so the gender of the second child is not necessarily different from the reaction of the first child. Many pregnant women who are pregnant with a boy or a girl have very different reactions, so the sex of the fetus cannot be determined based on the woman’s reaction after pregnancy, and it is forbidden to identify the sex of the fetus through any test. Therefore, women who are pregnant with their second child should just go with the flow of nature and not dwell on the sex of the fetus according to their individual reactions, until the fetus is born. However, it is important to do a comprehensive maternity checkup during the whole pregnancy, especially in the late pregnancy to do regular fetal heart monitoring to avoid accidents.