After 13 weeks of the depo-provera birth contol shot. discontiue taking it. will my appetite will decrease ?

Maybe : If you can say with certainty that the shot corresponded with an increase in your appetite that was persistant then you likely will see a decrease. Everyone is different and for many people there is no change in appetite. If you were using for contraception and not just menstrual symptoms have a back up plan to take its place as pregnancy definitely causes increased appetite and weight gain.