early labor?

I have been super crampy most of the day and have had mild contractions that I am trying to keep track of. I think some of my mucous plug came out, but still no pink color or spotting. And best of all...one boobie works! I had a squirt of colostrum today! We are making progress. I guess scraping those membranes while being so effaced was a good thing. Let's see what the night holds.