Hello Nicole, Implanon
is a synthetic progesterone
preparation. It prevents conception by inhibiting ovulation, by making cervical mucus thick & impossible for sperm penetration. Improper menstural bleeding pattern is quite common. Spotting or scanty bleeding instead of regular bleeding occurs in the initial few months due to hormonal imbalance. Complete absence of period is also very common & so don't be worried. Fertility
(ovulatory cycles) may return back 6 to 30 months after the discontinuation. But may take a long time for some women. Dizziness
& hot flushes are the side effects of Implanon.