I too and 36 NOW 37 weeks tomorrow and experience the same thing with no change in dialation, and 90% effaced. I think my little bundle of "JOY" is pressing so much on my intestines and muscles that it hurts....I'm getting the pressure and all as well down there. She is moving around much and well what helps if I lie down and allow her to move....it seems to get better. If not always call doc see if he wants to evaluate you. Better safe than sorry.