A very painful pregnancy stomach may be almost born, but not absolutely, it may also be caused by placental abruption, premature miscarriage, gastrointestinal diseases and other reasons. 1. Almost born: pregnancy stomach ache if occurs in late pregnancy, is paroxysmal, obvious full uterine contraction pain, uterine contraction pain duration gradually prolonged, pain interval gradually shorten, pain feeling gradually strengthened, belongs to the manifestation of the labor and delivery, indicating that the pregnant woman is about to give birth to a child. 2. Placental abruption: Placental abruption occurs in the middle and late stages of pregnancy, the blood enters the blood sinus between the placenta and the uterine wall, stimulating the uterus to cause strong contractions or frequent contractions, which will also make the pregnant woman’s stomach very painful, at this time, it is an abnormal manifestation of the need for urgent medical treatment, so as not to cause adverse consequences. 3. Pre-eclampsia: If the stomach pain occurs in early or mid-pregnancy, it may be the manifestation of pre-eclampsia, which may be accompanied by vaginal bleeding and other discomforts. 4. Gastrointestinal diseases: pregnancy stomach pain may also be gastrointestinal diseases, such as appendicitis, gastrointestinal tract inflammation, etc., but also does not indicate that the pregnant woman is about to give birth. In short, there are many reasons why a pregnant woman’s stomach hurts, and it is necessary to go to the hospital for a checkup to determine the exact cause.