I'll be honest, I don't know a lot about that pill in particular.. But for most pills in general, it says you're protected after 1 day if you take it on the first day of your cycle, and if taken any other time, you're protected after 7 days. Did you read it wrong, perhaps? If not, then like the poster above me said, you're generally only likely to get pregnant halfway through your cycle, so don't worry too much :)