In the 4th-7th months of pregnancy, if the general condition of the pregnant woman is more stable, the placenta and fetal position are normal, and there are no symptoms of pre-eclampsia, sexual life can be appropriate. Sexual intercourse should be appropriately reduced or avoided during pregnancy. Among them, sexual intercourse should be strictly prohibited in early pregnancy and late pregnancy, while the middle pregnancy is relatively relaxed. Early pregnancy generally refers to the first three months of pregnancy, which is an important period for the growth and development of the embryo and is prone to miscarriage. In addition, the fetus has matured in late pregnancy, and sex can easily stimulate contractions and cause premature labor. It is relatively safe to have intercourse in the middle of pregnancy, so it is recommended to have intercourse after 12 weeks of pregnancy. If you have pregnancy complications, such as placenta praevia and other high-risk factors for vaginal bleeding, you should also avoid intercourse. The frequency of sexual intercourse in the middle of pregnancy should not be too high, and the movements during sexual intercourse must be gentle to avoid pressure on the pregnant woman’s abdomen as much as possible. In addition, it is necessary to pay attention to sexual hygiene to avoid infection.