Pregnancy scare... please help

So I had unprotected sex 4 days ago and he pulled out. I wanted to take a morning after pill but wasn’t able to due to certain reasons so I’m a bit worried cuz you could never be too safe you know ??? I wasn’t ovulating during that night so I know that cuts down the percentage of me being pregnant but there’s still that one percent chance that I might have a little human growing and it hasn’t helped recently that everyone and everything I’ve been seeing is about babies and pregnancy. Am I just paranoid or is there really a possibility I might be pregnant ??? Tell me what you think ? Any facts that could help ease the mind ... SOMETHING !?!?