There are two possibilities for stomach pain and bowel movements in the middle of pregnancy: one is a physiological manifestation and the other is a pathological one. In mid-pregnancy, the enlarged uterus presses on the rectum, which can easily cause a feeling of defecation and a slight pain in the stomach. Because the fetus grows faster in the middle of pregnancy, the uterus will also increase in size, which will cause painful sensations in the uterine ligament. Another situation is when there is an inflammatory infection of the intestines, there will also be pain in the stomach and a feeling of falling. In this case, it is necessary to pay attention to warmth and a light diet, and to observe the nature of the pain in the stomach, if the pain in the stomach is more serious, you should go to the hospital as soon as possible for examination and treatment.