I had unprotected sex a couple of days before I was supposed to get my period. Ended up getting my period about ten days late and it was very heavy with more clots than normal. Period ended on Saturday and I'm now having strange discharge. Kind of thick, yellowish and a lot of it. I immediately scheduled an appt for Thursday but does anybody know what this may be? Thanks.

Sounds like an infection. Sadly it could be one of many, and there's no way to tell you which one it is.

Good luck.