birth control
"Implanon is very effective! This will be my 3rd year having it. Worst part is the irregular bleeding, sometimes I'll go 3 months no period & then the next 2 months I bleed a bit every other week.. And I would say my normal PMS is a bit worse & my breast are awfully sore but its bound to have some side effects. None of them are long-term issues but very unpredictable."