I am 37 weeks pregnant and am having regular stinging sensations in my tailbone. They come every six minutes or so and last about a minute. My contractions with my first child felt like this, only in my pelvis. I was recently in the birthing center where they told me that I was indeed having contractions, "just not enough to do anything yet." Is this early labor, pre labor, or the real deal? I can walk and talk through them. Also, this has been going for four days.