@Kat919 - I wish I'd known that about walking! I didn't do a whole lot of walking while pregnant with my first child because he was born in the winter and now I wish I had. He was OP and no one noticed or told me until it was too late.
The other thing about OP babies is that they cause back labor, which is super painful. Then you get an epidural because it hurts so much - and getting an epidural is associated with OP babies that don't rotate! Then you wind up with a c-section, like me.
During my second pregnancy, I was a lot more active and walked more with my toddler and I'm sure that's a big part of why I was able to achieve a VBAC (vaginal birth after caesarean). I was in better shape and baby was better positioned!