It's easy to panic if you fall during pregnancy, but your body is designed to protect your developing baby. An injury would have to be severe enough to seriously hurt you before it would directly harm your baby. The walls of your uterus are thick, strong muscles that help keep your baby safe. The amniotic fluid also serves as a cushion. In addition, during the early weeks of pregnancy, the uterus is tucked behind the pelvic bone, so there's even more protection.