Mucous plug??

Is this my plug? 36 weeks yesterday. I've been feeling contractions for about a week now, they don't hurt but they can get uncomfortable. I was checked yesterday and the doctor said I was about a fingertip dilated. I haven't had any weird discharge or anything this entire pregnancy. Never seen this before 😩😩 also I can't figure out how to add the TMI thing, so embarrassed...I'm sorry guys. Help
Also want to add: I was just checked yesterday. She said I'm a fingertip dilated head is -2. So I figure if it was something crazy like a yeast infection she would have told me lol. Hmmmmm.