preterm labor? or just discomfort?

Ladies, this is my first pregnancy. o was adopted so I don't have a lot to compare to. I'm 31 weeks 3 days pregnant. I've have loose BM for 36+ hours. In the last 12 hours I've had back pain, and cramping in my lower back. I've had Braxton Hicks.. or at least what I think is Braxton Hicks.

I'm alone right now so I'm probably over parranoid.

I've been on modified bed rest since 23 weeks. up until this point I have not had much pain or discomfort. Im assuming that changes towards the end.

can anyone give me some insight? I feel like I've been laughed when I've gone in so id like to avoid any unnecessary trips to L&D.;