Are you having contractions or other signs of labor? Back pain is a very common complaint late in pregnancy. I have had bad back pain since 31 weeks. I take a hot bath, alternate cold/heat packs, and get prenatal massages. Sometimes I use my yoga ball to bounce and stretch my back, it relieves the pain. Tylenol helps a bit. If it is unbearable - call your doctor. But I don't see why you would think labor has begun because your back hurts.
Re: How do you get rid of back pain?