Add pains/pressure

I had Braxton hicks with my first quite a bit but I'm having issues this time. The past 2 nights my lower back has started hurting and more of the top of my belly gets tense/tight and I get a weird pressure in my lower belly and a pain that wraps around my front from my back and it isn't awful just super uncomfortable and starts to hurt occasionally. I'm not sure if it's my nerves getting to me or if I should call just to be sure, I'm also only 27 weeks