I think my baby is breech?35wks?

i go for an ultrasound on saturday when i turn 36wks to see if she is breech instead of head down now. she was fully engaged now shes not, shes at like station -2 or -3 now because of the contractions? plus now she is all the way back up in my ribs? would her being breech make it easier to hear her heartbeat up near my ribs? that is where the nurse found it and it was very loud and clear up right under my ribs? does this sound like she is breech?