What Is The Treatment To Reduce Weight After Delivery?

hi there,i gave birth 9 months ago and have sinse put on 30 kgs..i am breastfeeding exclusively and i dont eat alot of bad food and exercise regularly..my doctor today has put me in the ginet 84 contraceptive pill to clear up my acne and to regulate my period as i am getting it weekly...will ginet 84 help me to lose weight? i have discoverd on the internet that the cause of my weight gain could be from increased estrogen??? will this pill make me put on more weight?