"hi, i got the nexplanon april 2016, it was great, i bled about 3 weeks straight, then some spotting, then nothing for almost a whole year when i bled for a week. my breast size increased by a whole cup size. then the weight gain started, i was always a size one, and over the course of a year i jumped to size 5. now i did go thru a really traumatic experience with abuse so it thought i could have been from that. well i got my nexplanon removed a week ago and have already lost 5 pounds! my doctor told me when i got it that i probably wouldn&#039;t gain weight, well wrong."