When did baby turn?

Melissa • Married to the love of my life! Had my sweet Madison on 07/31/15 and now due with baby #2 Oct' 16.
I'm 30 weeks and 3 days, I don't know for sure but I think baby might be head down already. For the last few days she's had hiccups and they feel lower. That's all I'm basing it off of. I'm just wondering when did your baby turn to head down position? I know it can be different for everyone and she can even turn back still. But did the dr tell you or did you know? FTM here. Thanks!!