Bleeding during pregnancy is not normal. In early pregnancy, it is important to rule out the possibility of pre-eclampsia or cessation of embryonic development. If you have a preterm miscarriage, you should actively treat the pregnancy, and if the embryo has stopped developing, you should actively perform an operation to remove the embryo. Vaginal bleeding in the middle of pregnancy may be a sign of preterm miscarriage, or it may be caused by the placenta being positioned closer to the endocervix. Vaginal bleeding at this time may also require bed rest to treat the fetus. If preterm labor is ruled out, then placenta praevia and placental abruption should be ruled out.