"if gaining weight isn&#039;t a big deal for you then go right ahead. i gave this birth control 2 chances! and both times i got fat! gained over 30 pounds with the depo shot. the first time i gave it over a year. my period completely stopped which was awesome, was effective since i never got pregnant. the only side effect was the massive weight gain. i got on another form of birth control and about 2 years later i decided to give the shot one more chance and this time maybe be more active and work out, eat better etc. sure enough no matter how healthy i ate or worked out i managed to still gain 30+ pounds. will never get on the depo shot ever again. it took me about a year to naturally lose all the weight gain."