"i got nexplanon in jan 2016 when i was 17  , worst decision ever. right off the bat, 2 weeks into it , my heavy periods came for almost 2 months. then it was gone for almost a whole year. then things started again. mood swings , headaches, breast pain here and there, pain in my bladder area , also depression and anxiety. i&#039;m scheduled to take it out in jan 2018 , hope i can feel free and happy again. definitely would not recommend especially to young girls."