Early pregnancy usually does not cause abdominal pain, but when abdominal pain occurs, we should analyze it from two aspects: firstly, pre-eclampsia, when pre-eclampsia occurs, there is often pain in the lower abdomen and a small amount of vaginal bleeding. Secondly, ectopic pregnancy is often associated with pain in the lower abdomen and a small amount of vaginal bleeding, manifested by unstable blood pressure, continuous drop in blood pressure, accelerated heart rate, pale face, and fluid in the abdominal cavity found by ultrasound, which is caused by the inflow of blood into the abdominal cavity due to the rupture of ectopic pregnancy, then this situation is dangerous to life and must be operated immediately. This surgery is effective and less traumatic.