Pregnancy more than 40 days stomach suddenly no pain may be normal, but does not rule out the occurrence of complete miscarriage, the fetus stops developing and other abnormal situations. 1. Normal situation: in early pregnancy, the hormone level changes significantly, which may cause stomach pain, while more than 40 days of pregnancy, the hormone level changes are relatively flat, the stomach pain symptoms can disappear, is normal. 2. Complete miscarriage: If the patient’s stomach suddenly stops hurting, accompanied by vaginal discharge of pregnancy, it means that the patient has a complete miscarriage. 3. Fetal cessation of development: more than 40 days of pregnancy belongs to the early stage of pregnancy, the fetus may be due to genetic or chromosomal abnormalities and lead to abnormal development, and eventually stop developing, at this time the patient’s body hormones suddenly drop, the stomach can appear suddenly no pain performance. If you are pregnant for more than 40 days and your stomach suddenly stops hurting, it is recommended that you consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examinations to clarify whether it is normal, and then take a reasonable approach to intervention.