I think you should talk with you doctor to see whats going on and also that you should of check out the side effects before getting on the Depo Provera shot because Deop can cause Irregular, heavy, or
no bleeding are common side effects of
Depo Provera. After a year of use, many women stop having periods. Lack of a period becomes increasingly common with longer use but since your period hasn't stop you should see your doctor.