"i&#039;ve had nexplonon for a year and i&#039;m honestly not a fan i have horrible mood swings sex drive is extremely low. also the weight gain is horrible i went from 137 to 160 in a year and i work out everyday eat healthy nothing will make it go down.  i get a migraine every week. my two friends that were on it gained lots of weight and people who have gone off lost weight in no time. it does prevent pregnancy and i have not got my period but side effects are not worth it"