pregnancy scare??

this is my first time posting on here but i just need some feedback desperately! my boyfriend and i had unprotected sex, but this time he came in me. we immediately got a plan b and i took it about an hour after sex. but the thing is, we had sex a day after i stopped ovulating! are my chances of pregnancy increased? has anyone become pregnant after ovulation has happened? my period is suppose to start in 11 days but i need some peace!!!! i tried looking online but i’m getting 50/50 pregnancy chance is increased, but it’s also unlikely.