Etonogestrel
"Personally I liked the nexplanon when I first got it, well until I had sex. After a month of having the implant I had sex for the first time since having it implanted then the next day I had a period and stayed on for almost a month and a half. After that I went to my doctor and my iron and vitamin D was very low so I had to take pills for that as well. I stopped having a period heavy period for about 2 months. After each time I had sex I started my period tho which is still annoying. I've had it since 10-2016 and its a good birth control but only because I haven't gotten pregnant but otherwise I wouldn't recommend. My breast hurt so bad all the time. My skin has broken out . I've gained 30  pounds and I'm always angry. I get heat flashes!"