Etonogestrel
"I am 24 and had Nexplanon put in around January of 2016. The first year was fantastic. Normal period, light bleeding. This year has been awful! I was depressed all of the time, sore boobs, feeling fluttering pregnancy movements in my belly, acne all of the time and I had a very heavy 8 wk long period before I had enough. Told my doctor to take it out ASAP. At the time of having it taken out is when my doc told me it TRICKS your body into thinking its pregnant. Thats why all of the symptoms are so terrible! I've been 3 weeks without it and I'm still working to get my energy back. Period is back to normal. Ladies, beware. Just do your homework."