TMI: mucus Plug?

When I was pregnant with my first I lost it in pieces so I don't actually know what it looks like In whole. I'm currently 36 weeks pregnant. Went into early labor on Friday but it stopped late Friday night and have been having contractions on and off since but nothing enough to head into the hospital doctor said they wouldn't stop labor even if it did happen now anyway ... Is this my plug? O_o ... Haven't had sex since Friday morning if that helps y'all determine lol