Will a pregnant woman have miscarriage if she was hit in the stomach?

It depends on the severity of the hit and the stage of pregnancy. A minor hit to the stomach is unlikely to cause a miscarriage, but a severe blow can lead to placental abruption, which can cause bleeding, pain, and miscarriage. The risk of miscarriage is higher in the early stages of pregnancy, when the placenta is not as firmly attached to the uterine wall.