"i just recently had my third implanon inserted. i&#039;m lucky, i have had really no side effects from it. with my last two i had bleeding intermittently, not knowing when it would happen was probably the worst thing. i cannot attribute it to weight gain (although this did happen, but was soon resolved when i started at the gym!). i don&#039;t have mood swings or feel highly emotional, i don&#039;t get bad &#039;periods&#039; they are usually light. there are so many bad experiences had by many women and there usually aren&#039;t many good reviews put up. my sister got one, she was not so lucky with constant bleeding, so she got it out - i think she gave it 3 months. my opinion is give it a go if doctor thinks it&#039;s a good idea get it, you can always take it out again."