Who got bfp w/sex 3-4 days before ovulation?

I ran out of OPKs this month and was guessing my O day to be around Monday of this week. So we had sex twice leading up to then and figured I was covered. Found an opk in one of my purses yesterday and decided to take it and low and behold it was positive!!! Had pain in ovary all afternoon yesterday (Thursday) so I’m pretty sure I ovulated already. Last BD was Sunday night. This puts me at about 3.5-4 days before ovulation as the last time we had sex. Anyone out there to give me hope?