When to start taking my birth control

I saw my gyn to get birth control yesterday (wednesday december 21). I asked if I should start now or if I should wait a month til my next period. She said I should start now since im still in the 7 day period. I know there is the first day start and the sunday after start. I started my period on Wednesday, december 24 and ended sunday, december 28. Either way, I know I wont be starting on time and will have missed some of the pills. Should I just start on week one, wednesday for the sunday start. or should I start week two wendesday for the first day start?
Asked Jan 02, 2015

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