Wiggling sensation near pelvis

Rachel • 25 years of age -- one angel baby (Emelia Rose) and my rainbow baby born 07/13/15 (Layla Marie). Baby boy due 03/03/2017
Every few minutes I keep experiencing a "wiggling" sensation near my pelvic bone. I'm 31 weeks 6 days and I'm curious as to what it could be. I was thinking her little hands were down there because I'm pretty sure her feet are under my ribs. She keeps pushing her feet into and beside my ribs, which I get enjoyment out of. 😆 Anybody else experience something like this? I'm pretty sure it's her hands...it may be her head. No idea! I just know it feels like something is wiggling down there.