If you have intercourse after pregnancy, there is no need to be nervous if no infection occurs and no abdominal pain or bleeding is caused. Intercourse is not recommended in the first 3 months of pregnancy and the second 3 months of pregnancy. Intercourse in early pregnancy is prone to stimulate the uterus due to the unstable development of the embryo, and uterine contractions occur, and the embryo is prone to abort from the uterine wall and miscarriage occurs. In late pregnancy, intercourse is likely to cause infection and premature rupture of membranes, as well as preterm labor. If contractions or vaginal bleeding occur after intercourse, it is recommended that the pregnant woman take rest and see a doctor promptly for frequent contractions and, if necessary, give contraction-inhibiting drugs to protect the fetus and pay attention to preventing infection if bleeding occurs.