You are supposed to start the pill on day 1 of your cycle.
But don't you get period after 21 days of taking the pill?
So does that mean the first month you will only have a 21 day cycle and will start your period after 3 weeks instead of 4?
Also does that mean your cycle day is different to your pill day?
Cos cycle day 1 is the first day of your period. But by pill day 1 your period would have stopped.