Help im paranoid and might have a scare

So me and my ex broke up recently but the last time we had sex was without protection and i had a scare bc we werent sure if he came in me or not 🤦🏻‍♀️ so this was right before my period started probably a couple days to a week before and i got my period so i wasnt worried but its month 2 and now im 6 days late. Idk if im just paranoid and freaking out bc idk if you could get your period if you just had sex and got pregnant like i didnt know if that was possible? So is it possible i am? Its been two months since i had sex.