Will I get pregnant??!

Hi everyone, so two days ago my period ended and I ended up having sex with my bf and well we were using a condom and it broke and he says he doesn’t know if he came and I started freaking out because he didn’t notice it broke but I did and we immediately stopped when we realized. This happened like almost 30 min ago and I’m about to take a plan b. I tried being safe by using a condom but this was an accident should I be okay??? Thanks.