The hormone stick (Implanon) is a small flexible rod containing hormones. The doctor inserts it under the skin of the upper arm. It can stay there for three years. When it is removed, you can soon become pregnant again.
Advantages: You do not have to think about it for three years. Your period becomes lighter and sometimes is absent completely.
Disadvantage: You have no control over your period. You can get unpredictable bleeding.