Etonogestrel
"I got my implant in late June of 2015 because I was told by a colleague that her periods completely stopped immediately after she got the implant. I was sexually active at the time, and the thought of not having periods intrigued me.

 I had my period the week before I got my implant. My period skipped a month after the implant. Then the second month, I was bleeding heavily and then it became spotty over the course of two months. Then my period stopped completely for 10 months until late Aug of 2016. Now I've been bleeding off and on for almost a month and I hope it stops soon. I haven't had acne or mood swings while on the BC. I did have weight gain (30 pounds)."