"i had my nexplanon put in february of 2013. i had normal periods feb-april and then nothing until july. then it lasted about 10 days, which is long for me. i didn&#039;t have a period or any spotting at all until now in march 2014. it&#039;s been about a week now so i&#039;m curious to see how long it will last. i&#039;ve gained about 5-8 pounds but it could be other environmental factors. my acne has flared up during this period but i&#039;ve never had great skin and it&#039;s not worse than normal. i like nexplanon quite a bit, the rod never bothers me and it&#039;s very convenient to not have to take a pill."