"i just wanted to add my experience with nexplanon because there are a lot of negative reviews up here that really worried me when i read them right after i got it inserted. i&#039;m 19 and i got my implant in january 2017, got my period a week or so later for about 4 days, and haven&#039;t had it since. at first this concerned me a little but it&#039;s really just a signal that the hormones are working. i experienced no weight gain and no acne troubles either. i&#039;m not sure if this is relevant but i feel as though i can attribute my lack in side effects from getting the implant directly off of 2+ years of birth control pills. i did experience minor changes in mood a few weeks after insertion, but i have been feel completely normal since then."