HELP!L&D???

The past 2 days my back has been hurting constantly. It doesn’t come and go, and it isn’t excruciating, but it’s painful enough to cause me no sleep and can’t get comfortable. Tylenol didnt help me nor a warm bath. I don’t have any period like cramps though. Just constant back pain that came out of no where. I don’t know if I should go get check out at L&D or not. I am 39 weeks. I called and she just said she can’t give me medical advice over the phone but that I’m welcome to come get checked. I just don’t know if it’s a waste of time or not?