missed birth control pill

I accidentally skipped my pill. I don't really know what to do. It was Saturday night and I was at a party and not thinking, so I accidentally took my Sunday pill that night. (We've been on break so I haven't really been following what day it is and completely didn't even realize I skipped Saturday until this morning) I don't know what I should do.. should I take the Saturday pill tonight or should I take it this upcoming Saturday when I run out of the white period pills? Or should I skip that pill altogether??