Etonogestrel
"I've had this birth control for 2 years now and want it out so bad!  I'm super moody and my sex drive has gone way down.  My boyfriend for 5 years has noticed me not really into it anymore.  I got the Implanon when I was 17 and now I'm almost 20.  I was very active so my doctor told me to not worry about a period it shouldn't come back until I get it out. Wrong! I have been bleeding since the day I got it in. I will get a few months with no period, then maybe spotting for like 4 days. Sometimes I'll bleed for one day. The worst is the long heavy periods. Every 2-3 months I'll get a period for about 20-25 days. Right now I'm bleeding and it's my 22 day of non stop.  It works for not getting you pregnant though."