bulging sides after eating

valentin • trans dad///baby girl born 8/15/2020

i am almost 30 weeks pregnant. obviously ive been getting a lot bigger a lot quicker recently so a lot of these issues are kind of new to me, like, past week new. but today i ate dinner (i honestly didnt even eat that much considering how much i used to eat, although i did drink a lot of water) and afterwards i noticed cramping in my stomach and sharp pains in my sides. i felt my sides and it feels like my uterus (i think??? i have no idea) was hard and bulging out of my ribs. like it's weird but it felt like my uterus was where my ribs should be if that makes sense. and i should note that for 30 weeks i am extremely small, like i kind of just look like i gained 10 pounds. most people think im like 3 months pregnant.

idk, i know i probably explained this bad but i thought it was kind of weird that i was bulging out on my sides instead of my front