Abdomen pain...

I'm 30 weeks and for about the last week or so my abdomen has been sore when I bend over or put pressure on it. It's not like a sharp pain but it's definitely more than uncomfortable. The best thing I can compare it to is the feeling of somebody pushing really hard on your stomach right after Thanksgiving dinner.

I get it whenever I bend put any sort of pressure on my belly and I feel it especially towards the top of my abdomen (from belly button to bottom of ribs).

Is this a normal pregnancy feeling simply from the baby being so much bigger now or is this not how it is supposed to feel?