Baby is breech at 38 weeks?

So i am currently 38+2 days pregnant and when I went to the doctors yesterday we had a hard time finding the heart beat. When we finally did she said it's because the baby was laying with its back down. Doesn't that mean she's breech? I am starting to get frustrated with this one doctor because I saw her for my 37 and 38 week appointment and she didn't even check me. When I saw a different doctor at my 36 week appointment she said i was dialated to a 1 and my baby is head down. But I'm just getting frustrated because the doctor who said my baby is laying back down didn't sound concerned at all.. Shouldnt my baby be head down by now?