Missed period , help !

hey guys,

happy holidays ! my period was supposed to come sunday 12\15. i had the cramps & everything. i had sex friday night/sat morning i wanna say around 11-12-1 am ish & still haven’t got my period . i haven’t had sex between my last period until that night & this is the longest my period has been late. could i be pregnant ??

THANK YOU IN ADVANCE