"i&#039;m 18 and i got my implanon inserted about a month ago. i got my period which was 4-5 days long. it was very light and i had no pains. this was great for me as i usually suffer with heavy, very painful periods but the downside to this is i have been getting very emotional and moody lately. i&#039;m hoping this will wear off soon as it can get in the way of things but i still have a long way to go so hopefully it will all work out for the best."