Progestin-Only Pills

What Are Progestin-Only Pills?Pills prog

  • Pills that contain very low doses of a progestin like the natural hormone progesterone in a woman’s body.
  • Do not contain estrogen, and so can be used throughout breastfeeding and by women who cannot use methods with estrogen.
  • Progestin-only pills (POPs) are also called “minipills” and progestin-only oral contraceptives.
  • Work primarily by:

– Thickening cervical mucus (this blocks sperm from meeting an egg)
– Disrupting the menstrual cycle, including preventing the release of eggs from the ovaries (ovulation).


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