random hook up help.

so a few nights ago i was drinking at a friends party and had sex with someone i knew later that night. that night before i forgot to take my pill but i took it a couple hours late the night it happened. we used a condom off and on and i took plan b hours after it happened. should i be okay? i started taking my birth control normally which i was taking it normally besides the 2 pills j messed up when that happened .