"this is my second insertion of implanon. the first three years i had no side effects, other than some breast tenderness and the implant site was sore for a few days. i did not have weight gain, i actually lost some weight. i did not have a single period for the first two and a half years after the insertion. then for the last six months i began to get one every month. i recently had my second implanon put in a few months ago and have not had a period yet or any side effects. i love this method, my only complaint is that it is so expensive! mine cost nearly $2,000.00 for the device and the insertion. i am in my thirties and have not had any children yet, so i like the fact that my fertility will return quickly after removal."