20 weeks: breech & low placenta

Im in 20 weeks right now and just went for appointment yesterday. Supposedly to know our baby's gender, but baby didnt show and was sleeping. Did a detailed scan and doctor told us that baby's bowel has a bright colour. I had bleeding about a week+ ago and doctor said it could be baby swallowed my blood. Also, baby is in a breech position and my placenta is low. Anybody experience this and/or has any advice? Doctor called earlier and wants us to come back to do a check and scan on both me and baby.