Did you have a breech baby that changed positions before birth? How many weeks were you when baby flipped?

I had my 31 week checkup today and my doctor seemed a little concerned that baby was breech, but said she won't really worry about it until a few weeks from now.

I'm not really worried about it... His position is just uncomfortable because I can feel his head under my ribcage! So if he flipped it would be fabulous. lol