Very nervous

I had unprotected sex (he pulled out) with my boyfriend last week and I wasn’t supposed to ovulate around that time but I ovulated early I got a positive ovulation test and discharge , it was too late to take plan b as I’m sure ovulation happened , has anyone had unprotected sex during ovulation and not gotten pregnant??🫩 I know I should be using some sort of birth control if I’m avoiding pregnancy 😣