During the first trimester, which is the early stages of pregnancy, it is not acceptable if a pregnant woman keeps having sex. In the early stages of pregnancy, the fetus is relatively less stable, and the uterus is also more sensitive. At this stage, if a pregnant woman keeps having intercourse, it is easy to increase the risk of miscarriage, which can cause bleeding, abdominal pain and other symptoms, and in serious cases, it can cause inevitable miscarriage. Therefore, it is generally not recommended to have intercourse in the early stages of pregnancy. In addition, after pregnancy, the blood flow in the perineum of pregnant women becomes very rich, and in the process of sexual life, it is easy to cause vaginitis and vaginal inflammation in pregnant women, which has an impact on pregnant women. Therefore, for the safety of the baby, do not have intercourse in the early pregnancy, when you are 4-6 months pregnant, you can have sex appropriately, and you can not have intercourse in the late pregnancy.