"i started implanon about a year ago. over all i am really pleased with its affects. some things that i dont really like is i spot here and there ( not to often though ) and the first few months i had it in my arm irritated me really badly. other then that i have not gained any weight, have had no major mood swings, it almost completelly eliminated my cramps and back pain ( which was very severe before ) and my boyfreind and i are able to have a very good sex life. its given both of us alot of peace of mind. i excersize and eat healthy on a daily basis, which i believe is one of the reasons why this has worked so well for me. all around i would recommend this birthcontrol, while maintaining a healthy diet and excersize."