Awful rib/side/ back pain

I'm 26 weeks tomorrow with a baby girl. I've been suffering over a week with really awful pain in my left side. Pain runs from under my left boob down a few inches and wraps around to my back. It seems to be getting worse, not better. They only time I feel ok is lying flat on my back and even that doesn't last that long. Hurts to move, bend, cough, sit up, drive, lay on that side, I am not sleeping really at all, and hurts to touch. Anyone else dealing with this? Not sure if its just that she's really high and pushing on my ribs constantly or if it could be a stress fracture??