Okay. I am 38 weeks and 2 days. Yesterday I was 3cm dilated and 75% effaced. My doctor went ahead and did a membrane sweep. Ever since then I have had horrible cramps. And today I have had solid constant pain in my back. I have been walking around trying to start labor. I also had some blood tinged snot about an hour ago when I wiped. I'm cramping really hard and my lower back is just solid pain. Could I be in the starts of labor?