I'm almost 20 weeks and have been having all sorts of nightmares the last few days paired with pain…

I'm almost 20 weeks and have been having all sorts of nightmares the last few days paired with pain in my sides when I move and just recently I'm getting cramps in my pelvis. Like I'm doing awesome kegels but my body is completely relaxed. I'm worried this may be the beginning of a miscarriage. Has anyone else experienced this?

I can't get to the hospital, I'm snowed in!