Im experiencing light spotting and my period doesnt start for a week. im on bcps i take every day and i had a period last month. whats going on?

Vaginal bleeding: There are many causes of spotting between periods and other sorts of vaginal bleeding. You might just need a different birth control presription. But some causes are serious, like cervical cancer (or pre-cancer) and STDs if at risk. Any new, abnormal, or unexplained vaginal bleeding should be professionally evaluated. See your doctor soon.