So I Had Sex With My Boyfriend, He Was Using

So I had sex with my boyfriend, he was using a condom, he ejaculated but it broke, so I take 2 pills of yaz a day for 1 week and then stopped because there's no more, after 1 week, we had sex again but he didn't ejaculated inside of me. I'm so worried, I need help, I don't want to get pregnant. I'm not ready for it.