Hello and hope you are doing well.
It is common to have irregular bleeding and/or prolonged bleeding with depo use. This side effect is usually common during the first 3 months of use. If the bleeding is heavy and prolonged it can result in anemia and weakness. It is best to discuss with your doctor about this irregular or prolonged bleeding on Depo Provera .A complete medical evaluation may be necessary if the symptoms are severe and persistent. I sincerely hope it helps.
Take care and regards!