"i got the implanon in 2013 i believe and my experience has been pretty confusing. i mean it works, you won&#039;t get pregnant but i&#039;ve had my arm go numb and burn from having it. i don&#039;t have a period anymore which i&#039;m not complaining but i still get the cramps and they are worse than they used to be. i&#039;ve gained a lot of weight and considering i have bipolar disorder my moods did change but they have gotten worse since i&#039;ve been on the implanon but other than all the complaints i have it works the way it is supposed to"