Could I get pregnant?

I've been on the pill for almost a month now and I've been pretty good about taking it except for one day, which was almost a week ago, but after that day I took it and I've been good with taking it on time. But I had sex a few days ago and he came in me like 3 different times, we didn't really care because I've been on the pill, but the day after I slept in and wasn't able to take the pill in time. Could there be a chance that I get pregnant?