TMI. What is this discharge?

Ladies, I'm 3.5 months pp. I've had unprotected sex and then the next day had fertile cm. I checked my cervix and this came out. It looks and stretched like my mucous plug did. It's too early to take a test. I've felt sick the past few days and have a dull headache and am dizzy. I don't remember what my discharge was when I found out with my LO. Did anyone have this when they found out they were expecting?