can having sex on your period without protection get you pregnant!?

so my period lasted for 6 days, me and my bf had sex on the 5th day of my period and on the 6th day of my period and he came inside of me both times (tmi I know) is there a chance I could be pregnant!? I'm so worried, I'm 17 and already have a 7month old. if your just gonna comment to tell me I should get on bc then don't even comment at all!