If you are pregnant for more than a month, if your stomach is only vaguely painful and you don’t have any obvious feeling, you can pay attention to your diet and rest to observe and see. If you feel that the pain in your stomach has worsened, accompanied by other symptoms of diarrhea and vomiting, you should suspect that you have eaten something bad that may have caused the manifestation of acute gastroenteritis. Because of the special circumstances of pregnancy, it may be recommended to need further examination to rule out the possibility of ectopic pregnancy. Sometimes appendicitis, especially chronic appendicitis, can also cause vague pain in the abdomen. There are also cases of gynecological lesions, such as the presence of ovarian problems, may also cause abdominal pain, of course, should also be further ruled out the presence of urinary stones, gallbladder stones, through the ultrasound can be a preliminary screening.