What is this?

Mucus plug is usually thick and jelly-like, and it can have a pink or brownish tint—that’s totally normal! It's like a thick, gel-like discharge, medyo slippery, and it can come out all at once or little by little. If it’s not too much and wala namang cramping or bleeding, then no need to worry. But kung medyo marami siya, it could be a sign that labor is near, so make sure to monitor.