i'm sorry but it's impossible to answer your question without knowing the specific type of birth control pill you're taking. some pills come packaged in a 28-day pack and you simply take one pill every day all year round. some pills come in a 21-day pack and you should start the new pack 7 days after you finish the last pill in the pack. with seasonale brand pills you take them for 84 consecutive days. this webmd page has information on how to take birth control pills. but this is such an important topic that you really should consult your pharmacist to ensure you don't accidentally miss a dose which can affect your birth control coverage. best wishes to you!
if you start your cycle on a sunday do you start your new pack of birth control pills that sunday or the next sunday