birth control
"I've had nexplanon in my arm for just over 2 years with hardly any side effects.  It seems I'm one of the lucky ones.  The first year I had no period and almost no spotting.  The 2nd year I started spotting every 2 months or so but it was very light and only lasted a day or two.  The only downside I've had was last month I had light period for 3 weeks however in 2 years that seemed reasonable to me.  I had acne prior to going on the pill which cleared it up however when I went off it it came back.  Nexplanon cleared my skin up again and it has remained clear.  I also have had no weight gain or mood issue."