Breech baby?

Hello everyone. I will be 31 weeks this Thursday and for the last month my OB has been getting my little boy's heart tones above my belly button with the doppler. He was breech during my first anatomy scan at 18 weeks and had turned head down by my second one at 22 weeks, but now he's turned again. I talked to my OB about it and he said it isn't a cause for concern just yet. He said they really don't worry about it too much until after 34 weeks. I'm not too worried yet but I can't help but wonder what I could be in for if he doesn't turn.

This is baby #3 and I haven't had to deal with this.

Have any of you had breech babies? And if you have, what was your experience and what could I expect from this?

Picture of my bump from a week ago⬇️⬇️