I am 26 weeks pregnant with our second daughter and have been experiencing contractions. The contractions themselves haven't been painful (although I do feel as if I am having more and more of them), but I have been expiriencing constant pain accompainied with pressure in my lower abdomen and back for the last couple of days. I have also noticed an increase in discharge, but it doesn't seem to be much different in consistency, other than slightly stickier. The pain I have been feeling has been making it very difficult to walk and I have found that SOMETIMES resting will help (but not always). I have my next prenatal check up in five days. The symptoms I am having I didn't experience in my first pregnancy. My question is: should I be concerned and call the advice nurse now or relax and wait to see me Dr. in five days?