If I am using Depo Provera as birth control and I don get my period, is it building up inside me?
When taking Depo Provera, sometimes your period becomes irregular. You may miss periods, experience spotting, or not get a period at all. If this is the case, your period is not building up because the Depo prevents ovulation. If ovulation does not occur, then the body does not build up the vaginal lining or shed it, so you do not get a period.