Okay so I'm having really low back pains. It's constant. No waves or anything. A warm bath didn't help it is still…

Okay so I'm having really low back pains. It's constant. No waves or anything. A warm bath didn't help it is still getting worse. I'm on a heating pad now. I'm not quite 34 weeks yet. But what have your experiences with growing back pain been ? I've heard early labor is usually back labor. I feel her moving super low as well. Opinions? I have a dr appointment tomorrow so I will be asking I'm just curious.