Took plan b, made the same mistake!

Alright so I had sex one night. and he pulled out and came outside of me. So the following day I took plan b just to be safe. That was on Tuesday sept 29th. Then I started bleeding (my period caused by the plan b) on Friday October 2nd. Early Saturday morning the condom broke and he came inside me. I'm still on my period but today should be my last day, it's super light. Is there a good chance I could get pregnant or not? I know anything is possible and yes I am aware that I need to get on birth control. I just want to know if me being on my period would affect the chances of me becoming pregnant from that