Late period, on the pill

Molly
So I'm on the pill where you take it for 3 weeks then stop for a week to allow for a period, I'm currently on the week where I don't take it and I've had no period, I stopped taking it Monday and haven't even had a show, I've never had a condom split when having sex, I'm just unsure what's going on and if it's working properly? Any advice would be great