31 weeks pregnant women try not to have intercourse, because at this time the uterus is more sensitive, intercourse is easy to cause uterine contractions, resulting in premature delivery, infection and other diseases. 28 weeks of pregnancy is late pregnancy before delivery, it is not recommended to have intercourse, 31 weeks of pregnancy already belongs to the late pregnancy. The cervical condition of pregnant women in late pregnancy is gradually mature, the uterus is more sensitive, intercourse is easy to stimulate the uterus, triggering uterine contractions, easy to lead to preterm labor, and even preterm labor. If the movement of intercourse is large, it is also easy to cause premature rupture of the fetal membranes, placental abruption, etc. If you do not pay attention to hygiene, infections may occur, such as vaginitis and uterine cavity infection. All of the above is not good for the health and safety of the mother and fetus, so it is recommended not to have intercourse during late pregnancy. In addition, it is not recommended to have intercourse in early pregnancy, that is, before 12 weeks of pregnancy, because the embryo has just been laid, the chorionic secretion function is not perfect, and it is also a critical period for organ differentiation, so intercourse at this time is likely to lead to miscarriage. If you don’t pay attention to hygiene, the infection of the pregnant woman will be detrimental to the later growth and development of the fetus. The first thing you need to do is to take a look at the website.