Early pregnancy stomach pain, often caused by the following reasons: First, after pregnancy, the uterus enlarges, the uterine ligaments appear to pull pain, the pain will be relieved after resting, and the nature of the pain is not very serious, just a vague pain. Second, stomach pain caused by preeclampsia, due to progesterone deficiency, or after exertion, history of trauma, after sex, resulting in uterine smooth muscle contraction, stomach pain, combined with the history combined with the blood HCG and progesterone test, need to be given to stabilize the fetus treatment. Clinically, progesterone injection, or progesterone gel pills taken orally, will effectively relieve the stomach pain.