Depo provera (generic name: medroxyprogesterone acetate) is a progestogen only contraceptive. Its mechanism of action is to decrease the production of gonadotropin-releasing hormone from the hypothalamus that will further decrease the production of follicle-stimulating hormone and luteinizing hormone by the anterior part of the pituitary gland. This would prevent follicle formation and ovulation.


When using Depo provera, irregular bleeding or spotting might be expected in the first months of use. Since you experienced spotting after nine months of use and it lasts for two months now, you might consider visiting your gynecologist to detect the exact cause for the spotting. In the end, he might suggest that Depo provera is not an adequate contraceptive for you and might suggest its replacement with other contraceptives.