It may simply be side effects of being on Implanon. Many women experience menstrual irregularities, including spotting such as the discharge you are describing. Other common side effects are cramping, periods that are early or late. heavier or lighter, headaches, breast pain, weight gain, stomach or back pain, symptoms similar to the flu, nausea, dizziness, acne, depression, nervousness.

If you continue to feel uncomfortable, I'd put in a call to your GYN to see what he/she recommends. For now, I would not be concerned. What you describe sounds much like a typical reaction to being on hormonal birth control.

One of the listed side effects of Implanon is that it can affect your periods and make them shorter, lighter, heavier, or disappear to nothing. Implanon should prevent ovulation so that's not what is going on with the cramping. It's simply a side effect of this drug. You can always take a pregnancy test to rule out pregnancy and relieve your mind but from this birth control's website list of side effects, this is perfectly normal