Am I pregnant?

So I'm on the pill and I normally always wake up with my period the day it is supposed to come but this month it's been a day and there's nothing there. I know I might be panicking too soon but my boyfriend and I don't use condoms (he doesn't finish inside but I know precum is a thing) and I did take one of my pills 11 hours late this month and didn't have sex for four days because of it but I'm afraid that it wasn't long enough. What do you think the chances of me being pregnant actually are?