Flipped to Breech?

Melissa • First Glow baby in December 2016, just found out I'm pregnant again and due in March 2019.

At my appointment on Tuesday, my doctor said she felt my son's head when she did a cervical check, but today, I feel hiccups right under my boobs instead of down in my pelvis like I usually do. Could he have flipped after being able to feel his head? Ugh now I'm ready for my appointment on Wednesday so we can see! I'll be 37 weeks!