Its probably her little butt, my baby girl is always sticking her butt out lol
My little girl is already head down so it would have to be her feet... but it doesn't feel like kicks. It feels like something is just pushing out of my upper stomach.
Maybe its her hands?? From the ultrasound I had, I knew which was a foot and which was a hand, my little one likes to shove outward on my stomach right after she kicks me. lol I'm only 25 weeks though..