Do I start my new week on the patch even if I still have my period?

Yes!  On any birth control method, the most important thing is to stay on schedule. Even if your period hasn’t ended, start your next patch on time to prevent ovulation. When used correctly, consistently, and all the time, the patch is 99.7% effective!  Make an appointment at Teen Clinic if you want to learn more about how your birth control method works.