Postpartum hemorrhage, often severe, is major risk
Typically causes no symptoms during pregnancy
May cause vaginal bleeding in 3rd trimester
May cause preterm labor<unk>  may not deliver within 30 min of delivery
Attempts at manual separation fail due to no natural plane of separation or may cause massive bleeding
Attempts at manual separation fail due to no natural plane of separation or may cause massive bleeding
Placenta accreta
The same abdominal pain differential as non-pregnant patients, plus:
Septic abortion
Ectopic pregnancy
Placenta previa
First trimester abortion
Vasa previa
Complete abortion