"i have always been on a diet and on regular exercise (about 2 hours a day). i stopped dieting for 5 months (precisely the first 5 months i had the implant), and i gained 12 pounds in that time even with the constant physical activity. even now that i have started dieting again it seems impossible to lose the pounds i gained and even more the fat in the abdominal zone. i have tried hypocaloric diets, cardio workouts and still i can&#039;t get rid of them. 
not to mention the devilish mood swings and headaches.

of course it works as a contraceptive but agh, weight gain."