Check UCAS, phone up your school... I know my mate is going away tomorrow and if she phones up and they can't find her results (it's a big college) then she'll have to wait until Monday...
If you took those subjects on the Edexcel exam board, then they have this service where you can check your grade at 6am tomorrow morning.
However, to use this service (called Edexcel Results+), your school needed to sign up for it, and then they would have given you a card with your personal PIN for log in. I'm assuming you didn't get that card
Only way you can get your results is by going in as early as possible I guess...