Is It Normal To Have Periods Even When The Inactive Pills Are Skipped?

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                                                  hi i just started takeing birth control about 3 months ago and my doc told me to stop periods i can throw away the colored pills where i am supposed to have my period and take a new pack . so i started to do that but i missed one day of takeing it and now i have been having a very light period but im still takeing the pill and its my 8th day haveing a period.is this okay??? will it stop soon