There are many reasons for vague abdominal pain in early pregnancy, which is related to the normal changes in the body during pregnancy, pre-miscarriage and psychological factors: 1. Normal changes in the body during pregnancy: During pregnancy, various hormonal changes occur, the body becomes more sensitive than usual, and the contraction pain of the uterus may be felt when there is a little activity. In addition, pregnancy will affect the digestive function to a certain extent, when consuming too much greasy food will cause abdominal pain, it is recommended to eat a light diet and rest more. 2. Pre-eclampsia: If the pain persists without relief, or even irregular vaginal bleeding occurs, it may be pre-eclampsia or ectopic pregnancy, and it is recommended to consult a doctor immediately. 3. Psychological factors: During pregnancy, excessive tension and worry may cause pain in the lower abdomen, it is recommended to keep the mood relaxed, you can listen to soft and soothing music. If you experience vague abdominal pain in early pregnancy that is not relieved, you need to consult a doctor in time to avoid serious consequences.