Is Pregnancy Possible If Morning After Pill Is Taken 3 Days After The Intercourse?

well this weekend i had sex with a girl on the birth control patch but she was on antibiotics but said she got off a week before we had sex and i didnt use a condom and did the pullout method, but after pulling out and was done cumming i put it back in, and she is getting the morning-after pill 3 days later whats the chances of her getting pregnent?