"i have had my implanon for 2 1/2 months now and i&#039;ve had minimal side effects. i get slight acne on my forehead and my breasts grew a little. no weight gain, mood changes, or cramping during my period. however, my period itself is a bit of a problem. since insertion, i&#039;ve been having my period every other week and it lasts about 6 or 7 days. i can hardly tell i&#039;m having them, but it interferes with my sex life (boyfriend is not a fan) and i go through a lot of tampons. i&#039;ve also noticed that i spot or fully start my period after sex sometimes. however, i haven&#039;t had the implanon for very long, so i&#039;m going to give it more time for the hormones to balance out."