Chances of possibly Concieving

Good morning mommies!!! Hope all is having a GREAT start this morning. So today i am posting my chart and would like to know from you lovely mommies if its possible to still conceive from the last time i had intercourse which was 3days before my possibly O day? My fiance and i had sex without a condom that day an he told me he would pull out i trusted him to do so but he didn't. I had my lo in July.