Weird bulge? 13 weeks pregnant 🤷🏼‍♀️

So this has been going on for a few weeks now, but whenever I turn at a weird angle I will randomly get an uncomfortable feeling of like a bulge popping out of my stomach. Like towards my skin, trying to escape. It doesn’t hurt and everything looked fine when I had an ultrasound right before this started.

I guess I’m just wondering if anyone else has had this happen to them before? It never happened in my first pregnancy, just this one.