The main consideration is the physiological abdominal discomfort after pregnancy, but at the same time do not exclude the possibility of pre-eclampsia, ectopic pregnancy; now commonly used blood human chorionic gonadotropin (HCG), vaginal ultrasound to clarify. 1, the patient has been clearly intrauterine early pregnancy, at this time the small stomach pain is mainly considered to be physical abdominal pain caused by pregnancy, which is a normal physiological phenomenon, due to early embryonic implantation, uterine ligament pulling, changes in the body hormone level leading to accelerated metabolism in the body may induce abdominal pain; often manifested as a short period of time, the lower abdomen on both sides of the attack, aggravated by exertion, can be relieved after lying down to rest; at this time should pay attention to maintenance, prevent cold, eat less At this time, we should pay attention to maintenance, prevent cold, eat less spicy and sour food, and apply local hot compresses, which can be effectively regulated; if the hidden pain is long, gradually aggravated, or accompanied by a little vaginal bleeding, it does not exclude the possibility of pre-eclampsia or miscarriage, and we need to immediately go to the hospital to recheck blood HCG and early pregnancy ultrasound for clarification. 2. Those who have not had early intrauterine pregnancy (e.g. HCG positive, vaginal ultrasound cannot see intrauterine fetal sacs, and the doctor suggests to check again after one week; or those who have tested pregnancy by their own pregnancy test), but have small stomach pain, need to be alert to the possibility of ectopic pregnancy, such as tubal pregnancy, need to go to the hospital to recheck the above two indicators, if HCG value increases, ultrasound can see a mass in one of the fallopian tubes, no fetal sacs in the uterus, highly suspect ectopic pregnancy, need If the HCG value drops significantly and there is no abnormality on ultrasound, it indicates a possible biochemical pregnancy (the sperm and egg met to form a fertilized egg but did not settle); abdominal pain in ectopic pregnancy often manifests itself as prolonged episodes in one side of the lower abdomen, with gradual pain and even fainting. If you test for pregnancy at home with urine test paper and do not go to the hospital, you cannot exclude the possibility of false pregnancy, and the hidden pain in the stomach does not exclude gastroenteritis, pelvic inflammatory disease, appendicitis, etc.