Labor Signs?

I’ve been having irregular contractions starting since 4AM last night and it’s currently 8PM. When it hits which is in waves, my body gets the shivers and sometimes I even get the shakes till it passes. I just don’t wanna be turned away again at the ER and my water hasn’t broken. I had a small bloody show a week ago but idk what to do. 38w2d. Is this labor?