I started a different oral birth control and it ended up making me really sick so I stopped taking it for 3-4 days now and called my dr and she decided to put me back onto my old birth control. This 3rd or 4th day of not being on any sort of bc, I have started "spotting" as heavy as I would typically have my "scheduled" period. My actual "scheduled" period shouldn't start for another week or so. So my question is, do I immediately start taking my old bc that my dr reperscribed now or should I wait till after my so called "scheduled" period is over like you normally would when starting a birth control?