Etonogestrel
"So I've been on the Nexplanon for 3 years and 6 months. Had it for the first 3 years and I noticed that I had gained quite a bit of weight, roughly 50 pounds. My doctor recommended that I get it again because it was so effective, so I agreed. I'm about 6 months in and I've already gained 12 more pounds, mood swings, low libido, and sever depression. Oh and I also have an ovarian cyst, which I think was caused by the increase in hormones. This birth control is terrible I do not recommend it."