birth control
"Advantage it does its job, you don't have to worry about taking pills or getting pregnant. Disadvantage for me, I start getting a lot of spots, and gained 10 kg. I haven't changed my diet, however I actually exercise more than I used to, although the weight doesn't seem to come off and only increases. I got the implant October 2014 and weighed 55kg, now a year later I weight 65kg. 

As I said it does its job but can cause you to experience some side effects. Getting it taken out in a week due to weight gain and breakouts. Period were irregular and hardly any blood which was fine with me."