nervous!!

hi ladies!

on march 3rd, (2 days before my ovulation window started), i had unprotected sex with a guy, he pulled out but he also finished inside (during anal).

i am supposed to start my period in four days, but i am having tons of milky discharge, similar to the liquid that sits on yogurt or sour cream before you stir it. could this be pregnancy discharge?? i didn’t have any spotting, nausea, breast tenderness, just lots of discharge!!

thanks