Since last night I've been having what feels like contractions. I don't know, though. But the pain is getting worse and my back is hurting. Should I just not worry or should I go in? I'm 27 weeks

Update: I went to labor and delivery. I've been super stressed out and so I've been having pretty strong braxton hicks. My cervix is a little softer than usual but im not dilated or anything. I just need to keep the stress low, and try to relax! Thanks for the feedback ladies