A 33-year-old woman, G3P2, at 34 weeks’ gestation is brought to emergency following 2 hours of vaginal bleeding. She reports no abdominal pain, contractions, or recent trauma. Fetal movements are normal. Vitals are normal. Fetal heart rate is 145. She has had regular prenatal care with no prior complications. Which of the following is the most likely diagnosis?
Abruptio placentae
Braxton-Hicks bleeding
Placenta accreta
Placenta previa
Vasa previa