"i got the nexplanon october 2014 and i could say that for the most part it works. i get my periods about every 2-3 months but the cramps are horribly painful. what i do not like is that i have gained 60-70 lbs since i&#039;ve gotten it. i&#039;m considering taking it out or just keeping it until the 3 years are up. i really don&#039;t like how much weight i&#039;ve gained from it."