You go off the patch for a week, correct?
As with any horomonal birth control, your period will start anywhere from day 1 to the last day of the off week. Yes, this may mean you get back on the patch while you're still bleeding, and that's okay. I'm on ortho-lo (a pill), and I don't get my period until day 3 or 4 of the off week. Some women start their period right away, others don't. It can even change due to your age. I was on normal ortho tri cyclen when I was 16 for a few months, and my period started on day one of the placebos. Now, as I said, I'm on day 3 or 4.