I've been on Nexplanon for 8month now. The first 3months I had my period after that nothing. A few days ago I noticed a tinged pink discharge that whole day. After that nothing. Then yesterday I had the tinged pink discharge... what could this be?

Did you take a pregnancy test? Pinkish discharge is a sure sign of miscarriage.

It sounds like it may be the normal side-affects of the Nexplanon. The literature says that it can cause changes to your cycle.

NEXPLANON (etonogestrel implant) 68 mg - Risks and side effects (http://www.nexplanon-usa.com/en/consumer/about-it/risks-and-side-effects/index.asp)

The most common side effect of NEXPLANON is a change in your normal menstrual bleeding pattern. In studies, one out of ten women stopped using the implant because of an unfavorable change in their bleeding pattern. You may experience longer or shorter bleeding during your periods or have no bleeding at all. The time between periods may vary, and in between periods you may also have spotting.

However, if you are concerned about a possible pregnancy, you should contact your doctor.

From the same site:


Ectopic pregnancy
If you become pregnant while using NEXPLANON, you have a slightly higher chance that the pregnancy will be ectopic (occurring outside the womb) than do women who do not use birth control. Unusual vaginal bleeding or lower stomach (abdominal) pain may be a sign of ectopic pregnancy. Ectopic pregnancy is a medical emergency that often requires surgery. Ectopic pregnancies can cause serious internal bleeding, infertility, and even death. Call your health care provider right away if you think you are pregnant or have unexplained lower stomach (abdominal) pain.

It might be due to ovulation. Some women (I am one) will notice a slight tinge of blood when they ovulate. Most of the time it is so slight it goes unnoticed. But if you are looking for it, it can be easier to spot.

If you are worried, call your doctor.