In late pregnancy, if menstrual pain similar to menstrual pain occurs, it should be caused by the fetus falling into the pelvis, not contraction phenomenon, mainly manifested as a falling pain in the abdomen, which occurs around 37 weeks of pregnancy. The contraction of the uterus will also occur in late pregnancy, but it is irregular and short-lived, and the abdomen will be tight and hard. If there is a regular contraction pain, it means that labor is about to start, so you should prepare the items to go to the hospital for delivery in time to avoid danger. After the appearance of continuous menstrual pains, if vaginal bleeding occurs, you must pay attention to prevent the phenomenon of preterm labor and should go to the hospital for examination in time. In late pregnancy, the abdomen will press on the bladder and the phenomenon of frequent and urgent urination will occur. If you have the urge to urinate, you should clean it in time, otherwise you will also feel distension and pain in your abdomen.