Can you take your first pill before your due on your period?

You can, although it wouldn't make much sense. It will basically stop your period from coming for that month. My suggestion (what my doctor told me) is to start taking the pill the Sunday after your period has stopped. You will then continue to have your period at the same time of the month as always, and you won't have to worry about the "missing" period. Cheers, Squares PS If your doctor hasn't told you, wait a month before having sex to ensure that the pill has enough time to deal with hormonal changes. It won't be much use before that point.