Mucus plug?

Sa

So yesterday I went to go get a nst scan since I'm over due now, 40 weeks and 3 days and dr checked my dilation and I was 2cm buuut he said he removed part of my mucous plug to get things going?? Has anyone ever had that done? 🤔🤷🏻‍♀️ if so let me know how long after you went into labor! 🤗