Most of the abdominal pain during intercourse in early pregnancy is due to the contraction of the uterus during intercourse, which is a sign of pre-eclampsia. It is forbidden for women to have intercourse in the early stages of pregnancy because the embryo is not firmly planted in the uterine cavity and is susceptible to the impact of external forces, resulting in the abscission of the gestational sac and the uterine meconium and the occurrence of pre-eclampsia and inevitable miscarriage, and intercourse is only allowed in moderation during the fourth to sixth months of pregnancy. If you have abdominal pain during intercourse in early pregnancy, you should take proper rest. If you can relieve it and there is no vaginal bleeding, you can observe it temporarily. If the abdominal pain is severe, you need to go to the hospital as soon as possible to review the gynecological ultrasound, blood test HCG and progesterone levels, and if necessary, need to be treated with birth control drugs.