Etonogestrel
"I got my first nexplanon in 2013, had it for three years and got my new one about 2 weeks ago. I love it. I have two week periods every other month (so the same amount as a normal cycle within a year's time). Before it I had heavier periods. Now they are a lot lighter only downside is that I gained a few pounds (I became a lot less active also which added to the gained weight). When it was time to change it at the end of the three years my cycle stayed on for about 3weeks (Not bleeding the whole time. It was the normal two weeks as stated before and then a week of discharge that I usually get after my cycles). I've read a lot of bad reviews on this, but I absolutely love it. I literally don't have to think about birth control for three year"