I have read your question,
Without physical examination ,I cannot conclude anything here . In general, it takes about three months for your body to adjust to Depo Provera
. Similar to other hormonal
birth control methods, your body needs to get used to the hormone (progestin).
As your body is adjusting to Depo Provera, it is likely that you will experience irregular bleeding (spotting) and/or prolonged bleeding (like a continuous period).
Other side effects that you may experience include: skin reactions, weight gain, and pain (associated with the actual injection).
I strongly recommend you to consult a gynecologist nearby immediately.
Wishing you a good health,