When the mother starts experiencing placenta problems along with pain during the pregnancy When the baby’s position in the uterus is not normal If the mother doesn’t want a normal delivery If the mother is pregnant with twin or triplet babies The mother suffers from problems such as high blood pressure or diabetes If the amniotic fluid is less If the mother has been in labor for more than 12 hours and the baby’s heartbeat is slowing then an emergency C-section can be done.