Sex without condom

So I had sex without a condom with my boyfriend & I just got the jab. Your supposed to wait 7 days but we didn't, dumb I know. Anyways, he pulled out both times and came on me but I'm scared I might get pregnant, has anyone had the same type of situation cause I'm freaking out! Sex without any protection & not got pregnant?

Edit: I didn't use a condom because we didn't have any + I'd never felt it without a condom & we were in the moment. I know it was stupid but I don't want a telling off just a bit of advice xx