Mucus plug? 34w4d

Rosca

Hello, yesterday I’ve had contraction like pain but my back was hurting more than my uterus, that happened after sex, I felt baby’s head dropping down and I couldn’t move for 1 straight hour. I was at the gyno 3 days ago and she told me baby’s head took position and maybe I’ll give birth earlier than expected.

So my question is if this sticky-jelly-disgusting thing is the mucus plug ?

Or what could it be.

The hospital is kinda far so I don’t want to make a trip for nothing and I tought I can get some answers here.

If it’s mucus plug what should I prepare myself for ?

Thank you!