I'm having a lot of back pain these past 3 days. Its in my lower back, and it is constant. I can't get any relief standing sitting or lying down. Its starting to move towards the front a little but right now its mainly in my back and my left side. I know back pain is common, I just don't know what to be expecting for labor. Water hasn't broken but I have lost my mucus plug. Im currently 37 weeks, could this mean labor is right around the corner?