Nauseous & crampy

Clair
I'm 37 weeks tomorrow, and have been trying to clean some this morning before it gets out of hand, but I have had to stop & lay down now bc I am so insanely nauseous & starting to feel crampy & having pain in my back. This is my 2nd baby, but I do not remember this from my first. I go to the dr tomorrow but not sure if I should call or just wait it out. Anyone?