"i&#039;m nineteen and got the implant in the middle of january 2016. in terms of actually controlling birth, nexplanon is great. however, i&#039;ve been bleeding nonstop since about a week after it was put in. there&#039;s a day here a there where i don&#039;t bleed or it&#039;s light spotting, but otherwise i&#039;ve had a very literal period for almost eight months. i haven&#039;t dealt with any increased acne or weight gain, but it&#039;s now impossible for me to lose weight, where i had lost about sixty pounds in the year prior to starting this bc. also, i have hysterical mood swings and find myself depressed and tired more intensely than ever before. if you&#039;re considering this option, proceed with caution when it comes to the side effects."