1. Causes of abdominal pain after pregnancy Abdominal pain after pregnancy is a very common phenomenon, but there are many specific causes. During the first trimester, the baby begins to dilate and gradually get larger, which may cause mild abdominal discomfort. In addition, the growing fetus can also put pressure on surrounding organs, causing pain. Other possible causes include endometriosis, ectopic pregnancy, miscarriage, etc. 2. Different