PLS HELP do you think i could be pregnant?

okay so about 3 days ago me and my boyfriend had sex. we used a condom but right as he came it snapped and he came inside of me. i looked at my flo app and it said that that day was my ovulation day, i know it’s just a guesstimate but that’s what it said. less than 24 hours later i took a plan b. i read that it might not work because i could be ovulating so that’s what’s really stressing me out. i know nobody can say for sure but do you guys think i’m pregnant? or what are the chances that i am?