Etonogestrel
"I got my first Nexplanon in right after my son was born, that was over 17 years ago now.  Over the years I have had very little bleeding, although I do get the symptoms of a period (mild cramps, tender breasts and over emotional at times) I'm due for a new implant in a couple of weeks but I'm considering not taking anything to see how my body reacts and regulates itself. I've noticed recently that it's much harder to keep weight off and my moods have been up and down this past couple of years but I think this may be due to my age and change in lifestyle rather than the Nexplanon. I'd suggest giving it a year to properly settle in and if after that you don't like it, try something else. It's seen me well over the years ;-)"