Etonogestrel
"I received this implant 11/13/15. Insertion was quick,painless until after a few minutes. Purplish bruising began, heavy bleeding, dime to quater clots as well. Bleeding and spoting (red and brown) has lasted on and off since insertion day. The first week at least. Cramps got worse, moods varied frequently and depression came about. Bad acne, dry mouth and pelvic pains also becomes apparent. Weight fluctuates. Prevents pregnancy and doesn't interrupt breastfeeding but wouldn't recommend."