Women are not allowed to have intercourse after they are newly pregnant. Because in the first three months of pregnancy, the fetus is in an unstable period, this time too early coitus, will cause preterm miscarriage or difficult to avoid miscarriage, resulting in the chance of miscarriage occurs. Because the fetus belongs to the unstable period, coitus stimulates the uterine lining to produce a certain amount of bleeding, which will cause the chances of preterm miscarriage. There are some women who have a tear in the vaginal wall after coitus due to excessive force, which is also accompanied by a lot of bleeding, and since the pain will stimulate the uterus, the chance of miscarriage exists. If possible, you should not have intercourse until 3 months after pregnancy, and you should be as gentle as possible during intercourse and not push too hard to avoid bleeding. It is not recommended to have intercourse after the 8th month of pregnancy, when the fetus is bigger and the belly is also bigger, it will press the pregnant woman’s abdomen during intercourse, and there is also a chance of preterm labor.