Brandy, you should do a straight 2 weeks of P1 without any off plan eating. So starting with day 8, count 2 weeks and stop then.
The sweet treat calorie limit is meant to help you avoid indigestion from sugar alcohols. Technically, as long as you aren't getting those, you can have a little bit more and it shouldn't hurt you. However, many people report that eating SF items, even without any sugar, can still lead to cravings for them. If you find that's true for you, you might want to consider eating more protein and veggies when you're hungry instead of sweet treats.