18 weeks. Is this normal at this stage?

My whole tummy is sore and my sides stick out further than my hips-like a bulge. From the belly button to the public bone, that whole area it's just sore and uncomfortable. Nothing helps. Laying on my back is to much pressure on my bladder. Laying on either side hurts, is sore an very uncomfortable. I can't lay on my tummy obviously.

I'm at a loss. Miserable. pregnancy pillows,don't help. I have spent 250 bucks on pillows so far. I have 5 different "pregnancy "pillows that are popular on here, but usless on me.

I'm tiny. 5 foot one and small frame.