If you are a Sunday start person and you miss two days of pills and take 2 pills on Tuesday and 2 pills on Wednesday and have sex that Saturday what are the chances of pregnancy occurring?

There is a 2% chance pregnancy will occur as you were not protected against pregnancy during the time you had intercourse and unfortunately you are still currently not protected against pregnancy. Because of this you need to use a backup method of protection, a condom, for the next 2 weeks to prevent pregnancy. Continue taking Birth Control as normal (one every day).