Mucous plug!!?

Sarah

Husband and I had sex and I orgasmed (if that makes a difference) and he finished in me. I’m 12 weeks pregnant and I just went potty, and when I wiped I had a long stringy yellow, thing on the paper. It wasn’t his cum because it just happened and it was my third time pottying since sex.

I have been kind of achey since then but I’m not cramping bad and I’m not bleeding. I’m just a little worried :/

Advice?