21 Weeks and 1 day!

So all day today I have felt extreme pressure in my lower abdomen and pelvic area. It is uncomfortable at most times. The pressure will go through and make my back hurt. Then a few hours ago I started getting pains in my pelvic area, like it would come and then go, and repeat. I thought maybe I had to go to bathroom, (even though I knew I didn't) I eventually did go, but the pressure is still there. Any ideas? Figured I'd ask here. Since I cant go anywhere. Snow is bad here. Were Under a level 3, which means no one is allowed on the roads.