I started birth control at the beginning of the year and got a 4 month prescription. At the beginning of May i had to go back for a check to make sure all was well. Because i had to go back, i was late( by 3 days) taking the new pack because i needed to wait for the new prescription. I started taking them as soon as i got them. I was wondering if taking them late could delay my period. Or if i should have waited until i started my period this month to start them again.