I began taking my first pack Microgestin exactly 3 days after my period ended. The instructions inside the pill pack do not address this situation; they only talk about 1. the sunday start or 2. the "first day of your period" start. So, I called my gynecologist's nurse and told her I was under the impression that after 7 days you are safe, but wanted to make sure. She basically said "uh, I'd go a whole month just to be safe".

So... what is it? 7 days or a whole month?