Cyclobenzaprine while pregnant?

Ellie • Zoe-Jane Belle Grimes born April 7th 10.3lbs 15 in head 21 in long at 1:08 AM!

Anyone ever taken cyclobenzaprine while pregnant? With my first I didn’t even take Tylenol so with this being an actual muscle relaxer its scary for me, my doctor thinks I’m crazy for not wanting to take medicine to help my back and hip pain. So is it safe to take while I’m pregnant?