possible pregnancy ?!!????

i had sex tonight but the condom broke and fell off (we had to dig in my vagina for the condom, that’s also when we realized it had ripped). i’m not really sure how to know when i’m ovulating so i based it off on this app. according to this app i started my fertile window yesterday (2 days)

i’m going to buy plan b in the morning (it’s about to be 1am rn) but i’ve heard plan b doesn’t work if you’re already ovulating.. how likely is it that plan b won’t work

i’m going to get the pill even if it’s a small chance of it working