Weird bulge below ribs

So baby is moving around and lays low near my pelvis and all is good with that. But I noticed on my left side of my stomach right below my ribs, there’s like a long bulge that goes across and couple inches on the side. It’s slightly sensitive if I press hard enough. But I’m not sure what the heck it is!! Is it like an organ or something? I’m only 17 weeks so I’m not that big yet, but I’m definitely growing a pretty decent sized belly. Plus I’m pretty small so there isn’t much room for anything to go.

Should I be worried? Does anyone know what this is? Is it just swollen muscles? Organs shoved forward? 🤷🏼‍♀️