What would you do?

Shelby
I'm 37+6 weeks (doctor moved up due date), been having terrible lower back pain that radiates into my hips and tailbone. But I haven't been having contractions. This is my first pregnancy and I don't have any family members to ask things like this. And my doctors office isn't answering the phone. Please what would you do? Do I need to go to the hospital or is this normal?