A slight tingling sensation in the stomach in the second month of pregnancy is generally a normal manifestation of discomfort in the small abdomen due to the growth of the fetus and the enlargement of the uterus during pregnancy, which can pull on the uterine ligaments and cause a slight pain. During this period, bed rest and no strenuous exercise will not affect the fetus. Especially after pregnancy, because some pregnant women exercise a lot and the uterus is in a right-elected state, it can pull the stomach pain or press on the abdominal aorta, causing pain, but the pain is tolerable and not particularly intense. If the pain in the stomach is more serious and worsens in paroxysms, you should consider that there are signs of miscarriage and go to the hospital for a timely examination.