If I were you I'd just skip it altogether, not just delay it for a week. Does that make sense? You don't really NEED to have a break for your period. If you want to skip it, just skip it, and start the next pack right away.

But however you decide to do it, you need to take at least 21 active pills at a time. So after (if you choose to have your period) you do have your 7 day break (period) you will need to take at least 21 more pills in a row (which means 7 more active pills from your next pack, if I'm reading this correctly).

No, you can't take a week off whenever you want to. You always have to take at least 21 active pills, and then no more than 7 days off. You can take 31 active pills, or 46, or 92, whatever you want. But not less than 21 (three weeks). And when you do have a break for your period, it can't be longer than 7 days.

Any time you mess around with your schedule, you might have some spotting/breakthrough bleeding, and that's normal.