"if there was an option for zero stars out of ten it would receive zero. i got this put in my arm about a year and a half ago and since then have put on right around 100lbs. i never get a period but have the worst cramps i&#039;ve ever had in my life around every 3 months. i&#039;ve never had acne, and now i can&#039;t get rid of it no matter how much medication i use. i am overly emotional and have the worst mood swings.  my best advice: stay away from implanon"