Q:
How does birth control keep you protected through the reminder pills? If you finish your period before you are done with the reminder pills are you more at risk for pregnancy during those reminder pills where you don't have your period?
A:
The placebo pills for one week are not hormonally active at all, and allow you to have a withdrawal menses bleed, similar to your own menstrual cycle when your hormone levels are low. It does not matter if your menses finishes before the inactive pills are done--that is quite typical and normal. As long as you are taking a pill every day from your pill pack, your risk of pregnancy is quite low (but never 0).
~The Doc
