It is possible to have intercourse during pregnancy, but you should have sex in the middle of pregnancy and pay attention to the position, frequency and strength of sex to avoid squeezing the fetus in the abdominal cavity and to avoid having sex too often. In the first and second trimesters of pregnancy, you should not have intercourse because in the early stages of pregnancy, the embryo is still unstable and if you have intercourse, it will cause uterine cramps and contractions that may lead to complications such as miscarriage and even fetal abortion. In late pregnancy, because the fetus grows larger, the size of the uterus will also increase, if you have sex is likely to cause contractions of the uterus, causing frequent fetal movements, serious may cause premature rupture of the fetal membranes premature birth and other phenomena. So during pregnancy sex, you should pay attention to choose the right time period of pregnancy and try to avoid sex.