Test paper to detect pregnancy but the stomach is always a little pain, such as pain is not serious is normal, such as pain is serious or accompanied by vaginal bleeding phenomenon is an abnormal situation. 1. Normal situation: test paper test pregnancy stomach pain may be fertilized egg implantation or uterine enlargement stimulation caused by the general pain is mild, will improve after rest, is a normal physiological phenomenon, do not need special treatment. 2. Abnormal situation: test paper to detect pregnancy after the stomach always hurts, such as pain is serious to check whether the aura of miscarriage or ectopic pregnancy, gynecological inflammation caused by. Generally accompanied by back pain, vaginal bleeding or abnormal increase in secretions, odor and other symptoms. It can be combined with ultrasound and blood HCG test to clarify the cause of stomach pain and then treat it. If you are pregnant, you should take care of rest, forbid sexual intercourse, and consult a doctor to clarify the cause of the pain and provide targeted treatment.