Scarleteen

If you take plan b while you are on BC does the 7 day rule appy?! Or are you fully protected?

If you're taking your birth control according to directions (I assume you're referring to the BC pill here, correct me if I'm wrong!), then there isn't a reason to take Plan B at all - it's not going to to anything your birth control isn't already doing. So yes, you're fully protected - but it's because you already were, if that makes sense.