If you forget your pills on a regular basis, then yes, you are increasing your risk of pregnancy. In order for the pills to give you effective, reliable birth control, it is important to take the pills correctly and consistently. If you forget a pill, make it up. It is also important to begin a new pack of pills on time.
Forgetting a pill now and then (and making it up) shouldn’t have that much affect on the effectiveness. If you miss more than 2 pills in a row, definitely use a back up method like condoms for the rest of the pill pack.
7. January 2012
anonymous-qa