In the fourth month of pregnancy, it is possible to have sexual intercourse. Because the fetus is fully developed at this time, it is more stable than in the first trimester, and moderate exercise will not lead to miscarriage. During this period of sexual life be careful not to move too roughly or too violently, otherwise it will also easily lead to miscarriage. A moderate amount of sex during this period will help the pregnant woman’s mood and facilitate blood circulation. However, during the first and second trimesters of pregnancy, it is not recommended to have frequent sex or to avoid having sex as much as possible. In the first trimester, the fetus is not fully developed and the placenta is not developed, so if you have sex at this time, it may lead to miscarriage. In the third trimester, the belly protrudes more obviously, the pregnant woman’s belly is more bulky, at this time, if you have sex, it will press the uterus, resulting in uterine contraction or cause premature rupture of the fetal membranes, affecting the growth and development of the fetus, which can easily lead to premature birth.