25week Preggo Question

My belly is growing with boy. Baby number 1. and I'm having these weird....not pains, but uncomfortable feelings in my belly. It's not even IN my belly, it's on the surface. Maybe it's round ligament pains? Not sure, I thought those were more at the bottom. But all across the surface of my belly I feel like..cramps/pinches. Is that just my uterus pushing on everything, and my body growing? Or does it have a more legit name?  It's towards the top of my belly like by my ribs. It's really tight up there.