Etonogestrel
"It's currently May 2017 and my three year mark is February 2018 so I'm getting there. Just last month out of no where I actually got my period. I haven't had my period in two years. I got the symptoms of back aches [WHICH ARE EXCRUCIATING!!!] cramps and extreme bloating but I never actually bled up until a little after 2 years. It lasted a week and stopped and then came back a week after and stopped and now it's back again. I read about the nexplanon's hormones are wearing off so it'll be irregular periods. Not a big fan of it because tampons are going by fast! (It's not a heavy flow either, it's just EVERY OTHER WEEK!) I've gained 25 pounds and it's all in my face and my 'pooch'. I'm switching to the pill!"