Please someone..

I was sitting on the couch with the s/o and I just suddenly started feeling wet and strange down there and not the good wet either.. I got up and my shorts had a huge wet spot and I went to the bathroom it's clear and just mucus like, it's in large amounts and the s/o and I do have unprotected regularly. So I don't know what to do or what this is but it's not painful just can't get up..