birth control
"I got the implanon 4 years ago, (didn't want to get pregnant) as I was allergic to the pill, and was very clumsy with taking it I thought the rod was an amazing option. 
The beginning was crazy with periods all over the place, and extending for long periods. That was for the first 6 months however after that my periods disappeared for the rest of the journey on the rod (2.5) years. I got my first one out this year in June;and had another one placed in, the pros are no periods, and not having to worry about getting pregnant. The cons; depression,loss of libido, weight gain, loss of self and in saying that I mean I changed (my personality was bubbly happy) to sad, moody, angry! Different! I know the rod screwed with my hormones."