birth control
"I got my first implant in January 2014 and it's definitely effective as a birth control. I can definitely say I did gain weight but it's a combination of becoming less active and metabolism slowing down with the birth control. The only downside for me was that I bled for 2 months straight after I got it. Not crazy heavy bleeding. More like the lighter end of a period. Then then they just stopped which was actually what I was going for. I got it more for the reason of hopefully stopping my normal period which was usually about 8-12 days every month, very heavy, with cramps so bad I'd usually have to sit in a hot bath for an hour to help. My normal periods actually caused iron deficiency. Not everyone has a bad experience with Nexplanon."