Part of mucus plug or something else??

I didn’t get a picture of it but while I was peeing I felt something drop out of me, when I looked in the toilet it looked like a chunk of stringy snot (sorry if that’s TMI) it wasn’t a large amount and there wasn’t any on the tissue after I wiped, so I’m wondering if that was maybe a piece of my

Mucus plug or something else like discharge or something? I have had lots of pressure and pain lately in my lower abdomen and lots of tailbone pain as well.