Should I be worried?

I’m ovulating right now but I’m having some brown flake things come out when I pee. (Looks kinda like the very end of a period) I took a pregnancy test and it was negative. I had a period this month but it was early i think it’s because I took a plan b. Not sure what to think of this. I’m alittle concerned because I’ve been having unprotected sex recently. (Please no negative comments, just looking for some help figuring out what’s going on with my body) ❤️