The pain of stomach cramps in early pregnancy can be caused by the following conditions: the first condition, caused by cold and contraction of abdominal muscles, can be relieved by proper rest and warmth, and does not affect the growth and development of the fetus. In the second case, the pain of stomach cramps with vaginal bleeding, most of them combined with the occurrence of pre-eclampsia, need to go to the hospital to do a gynecological ultrasound and blood hcg measurement, when women have pre-eclampsia, need to give birth control drugs for treatment. In the event of refractory miscarriage, the uterus should be cleared as soon as possible. In the early stages of pregnancy, women should pay attention to rest and avoid overexertion and exercise to avoid increasing the risk of unfavorable conditions for the fetus.