"i got the nexplanon because i wasn&#039;t good at taking the pill and saw this as my best option. i was excited to start because i saw most reviews said no weight gain and it was the best birth control out there...wrong. it does it&#039;s job in the birth control aspect, but 75% of that could be because i&#039;m always on my period. it has calmed down somewhat, but when it get it now it lasts 3-5 weeks. i have had small breasts my entire life and have gone up two cup sizes since then. i normally wouldn&#039;t complain but my breasts are always very tender. i also have gained some weight and have trouble losing it. i&#039;m a vegetarian the majority of my diet is vegetables i should not have problems losing weight. i have scheduled my removal."