33weeks and 5days and in pain

Aimee • I'm a first time mom and I'm so nervous and have a lot of questions. Due date is 10/28/2016
Okay I need suggestions I'm having off an on back pains that sometimes go to the front but I don't know if I'm having contractions or Braxton hicks they last about 10 maybe 15 mins at the most and then they stop for about 10 to 20 mins or so. 
It feels like my back needs to be popped or something but the pain is starting to get to me I don't know if I should wait and call my doctor in the morning or go to the hospital ( which I feel like they probably won't do nothing)