Early pregnancy can sometimes cause mild abdominal pain, which is considered to be uterine growing pains, but sometimes it is also pathological, and it is recommended to exclude it. The following conditions should be noted when abdominal pain occurs: first, preterm miscarriage, when preterm miscarriage often occurs with lower abdominal pain and a small amount of vaginal bleeding, it is time to go to the obstetrics and gynecology department for examination, and also to the ultrasound room for ultrasound examination to understand some conditions of the gestational sac. 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, rapid heart rate and pallor, as well as 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. If necessary, surgery is required.