It is not recommended to have sex at seven weeks of pregnancy because in the early stages of pregnancy, generally within the first trimester, the embryo’s attachment is not yet stable, and having sex at this time may easily cause the embryo to miscarry. In addition, it is also not suitable to have sex in the last trimester of pregnancy because having sex in the late stages of pregnancy can easily lead to infection of the uterine cavity, which can lead to premature labor and premature rupture of membranes. Sexual intercourse is allowed during the fourth to sixth months of pregnancy, and when pregnant women are having sex, they should be careful to move as gently as possible and not too frequently. If vaginal bleeding occurs during intercourse or if the fetus moves violently, the intercourse should be stopped immediately. If abdominal pain occurs after intercourse, you should also go to the hospital in time.