Need advice.

I’m 24 weeks pregnant ftm and I started having Braxton Hicks about 2 weeks ago. I got them last week again and every since then I have had excruciating back pain. It’s gotten worse and worse and won’t go away. I have my boyfriend rub my lower back and I try a heating pad but it still hurts. i can’t lay in my bakc most of the time or my side I have to lay in a position where my stomach hangs to not put pressure on my back. And I have trouble standing up on my own, I have to hold onto something like the side of the couch or have my boyfriend pull me up and my belly isn’t even that big right now. Idk if I should go to the hospital or if this is normal to go through.