I recently missed 2 pills in a row (combo pill lutera). My leaflet said that you should use a backup method for 7 days because it will take 7 days to become effective in preventing pregnancy again.
So if it takes about 7 days of perfect use to become roughly 99% effective again, how effective is it after 5 days of perfect use? 25%? 50%? 75%? 90%? (Because Im assuming it doesnt just go from day 6 not effective at all to day 7 99% effective)
I want to say its 75% but then again it shouldnt be effective UNTIL day 7. i doubt the effectiveness gradually increases.