Colposcopy @ 36&5

Macy
So last Friday, my Dr. Finally got his wish and I gave in to having the colpo done. I was told beforehand that all they would do is look, but once I got in there, he decided he needed to take a biopsy. Well, Friday and Saturday I had my regular nightly contractions, some dead skin discharge, but no blood (he told me if I was to bleed profusely I should go to the ER. Last night i had a pretty bad round of diarrhea and after my nap today I had some pink spotting. I was advised to not put anything in my vagina, which I've listened to.. I am just wondering if the spotting could be labor onset? Has anyone experienced this before?