is there still a good chance that you can get pregnant on ovulation day ?? I had sex tonight around…

is there still a good chance that you can get pregnant on ovulation day ?? I had sex tonight around 9 or 10 something the 4th was my ovulation day, I read that u can get pregnant during ovulation day but less likely because the egg is already out , but it has 24 hours so wouldn't I still have a good chance to get pregnant?