There are several cases of abdominal pain at night in early pregnancy: first, normal physiological reactions, some women have obvious early pregnancy reactions in early pregnancy, such as pain in the abdomen, nausea, vomiting, loss of appetite, weakness of the limbs, etc. If the pain is not very strong, no bleeding is not necessary for treatment, you should pay attention to rest, do not overwork. Secondly, if abdominal pain suddenly appears and the pain gradually increases, consider that it is caused by pre-eclampsia miscarriage, pay attention to observe whether there is bleeding, and go to the hospital for examination in time. Thirdly, abnormal gastrointestinal function, women are prone to gastrointestinal dysfunction and indigestion after pregnancy, which can also cause pain in the abdomen, usually pay attention to a light diet, if the pain is unbearable, it is recommended to seek medical attention immediately.