Crossing my fingers!!

Ok, I'm not sure I was ovulating but my fiancé and I had unprotected sex about a week and a half before my periods due. We're not trying but I finding myself hoping my period doesn't come which is suppose to in two days. I have had a weird feeling not to smoke/drink or anything harmful so I'm hoping it's some crazy motherly instinct. Yes I know I'm crazy, but I'm so excited :) hoping for a BFP!!