Sex while on your period

I've already googled this but Can you get pregnant from your partner letting his soldiers free while on your period? First of all, I know some people have no problem having sex during that time of the month but I usually don't. However this month my hubby couldn't keep his hands off me and it was my last day on my cycle so I gave in. While "doing the do" he says to me "Babe, can I nut in you right now?" I'm thinking yeah right 😏 but I said "Sure, go ahead" and he did!!! Afterwards we starred at each other like WTF did we just do? 😱

So my question remains the same, Can you get pregnant while on your period???