preg? young

ok i’m young and clearly dumb . i had unprotected sex two days before my expected period .. he pulled out from what he’s told me but we been having intercourse a lot that night . my periods are usually irregular by just a few days . i had spotting light pink 5 days after we had intercourse … i’m now 6 days late . what you guys think? i don’t wanna be pregnant we always would use protection before this. my cycles can go up to 47 days .. so idk when i could’ve ovulated