As far as I know there is only one in there! My last pregnancy was 6 yrs ago.

Same here 15 weeks and I'm in so much pain. Rolling over in the bed is the worst or if I sit for awhile and go to get up. Mines is mostly on my left side. I'm pregnant with twins but I didn't have this symptom until my third trimester with my last pregnancy which was 3 years ago. Any chance you're having twins?