HELP? Went to the hospital. I wasn't dilated, and my water didn't break. But ever since the nurse checked my cervix,…

HELP?

Went to the hospital. I wasn't dilated, and my water didn't break. But ever since the nurse checked my cervix, I've been having serious cramping. I've been carrying low this whole pregnancy, but I'm positive my belly dropped. Plus the amount of pressure in my back is unreal. But I also keep feeling like I have to poop (sorry) but can't go, because it makes me cramp even worse. Anyone have this happen? 35 weeks on Thursday.