In 5 weeks of pregnancy, if the pregnant woman’s belly is as painful as menstruation, consider the following: 1, consider the relationship with preeclampsia, in the early stages of pregnancy the fetus is not very stable, and it is easy to be affected by a lot of external environment. If the pregnant woman is not resting well, poor embryonic development or strenuous exercise, coitus, etc., as well as emotional fluctuations in particular, can cause stomach pain, causing a priori miscarriage, this situation needs to be actively preservation of the fetus treatment; 2, need to rule out ectopic pregnancy, because some women have obvious tubal inflammation can lead to ectopic pregnancy, ectopic pregnancy patients the vast majority of abdominal pain symptoms, if it is ectopic pregnancy need to be Hospitalization; 3. It is related to the enlargement of the uterus and the implantation of the embryo, which will be slowly relieved when resting.