Feeling baby very low.

So I started feeling movement around 20 weeks. I'm now 24 weeks and the movement is all centered down very low. Everyone told me this means baby is feet down. Now at my anatomy scan baby was head down and sitting very low. So low we had trouble getting a good look at his brain development. Even during the scan as I watched him move I felt it all down below the belly button in the pelvic area. Is that normal with a head down baby?