If you have intercourse in the first month of pregnancy, clinically, if it does not cause pain in the lower abdomen and there is no vaginal bleeding, there is no need to be nervous. It is recommended to keep the vulva clean to avoid pathogenic infections and to take proper rest. If there is no discomfort, it is recommended to just get up and go normally. In addition, you should not have sex in the first three months of pregnancy, mainly because the embryo is still unstable in the first three months of pregnancy, if you have sex, the stimulation of sexual life will lead to uterine contractions and cause miscarriage, so do not have intercourse in the first three months of pregnancy. You can have sex in the middle of pregnancy, but you should also pay attention to moderation. Frequent sex is likely to lead to uterine contraction, which will cause a lack of oxygen for the baby in the uterus, so you should have a moderate sex life.