Does Switching From Depo Provera To Minigynon Cause Reduction In Breast Milk?

Hi I have a baby, he is four months old and i am taking the depo perovera but it makes me bleed non stop. I want to stop taking it and take the minigynon as I did before pregnancy but wants to know if it will affect the flow of the breast milk. I am 34 yrs and weight is 228lbs. I have gained 32lbs since taking the injection.