I have a question that I can't seem to find the answer to in my pill packet or online!
I just wanted to know, why is it that if you are sick or have severe diarrhea on the pill, an extra back up method is required for 7 days? I understand that prevention against the pill is weakened by these things happening to your body, but why specifically 7 days? What happens during this time - why not keep extra protection for the remainder of the pill packet if it's longer than a week left? I'm honestly curious, can't seem to find anything to explain.
Thank you!