There is however, an effective way of delaying the period for a week, and it involves skipping your placebo pills, and taking the third row of pills from a new pack of birth controls pills, or the last seven before the placebos in a new pack
. After this, you can start once again a new pack
of pills from the start if you want to avoid a period for this month altogether, or wait a week and have your period. It's all outlined here very well: http://thewelltimedperiod.blogspot.