Side Effects

Some users report the following:

  • Spotting or irregular bleeding

  • Low abdominal pain

  • Breast pain
  • Vaginal discharge

Known Health Benefits and Health Risks

  • No change in breast milk production or composition; the method supports continued breastfeeding and healthy infant nutrition.
  • Safe and effective, based on several 1-year studies. Its health risks may be like those of progestin-only pills (see Progestin-Only Pills, Side Effects, Health Benefits, and Health Risks).
  • Women who are actively breastfeeding and are at least 4 weeks postpartum can safely use the progesterone-releasing vaginal ring (MEC Category 1).