"not really any complaints. i have some spotting and noticeably lighter periods (also less often). i don&#039;t usually cramp so i can&#039;t say much about that. and as far as mood swings go, i feel they are a pretty regular side effect to having a period. i don&#039;t blame nexplanon for weight gain as it is probably due to the simple fact that i don&#039;t workout regularly as much as i need to. overall, i love it. you don&#039;t have to worry about it for 3 years and it&#039;s an excellent birth control option. i am on my 3rd one (7th year)"