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What is your menstrual cycle when you're on the pill?

ANSWER

Most birth control pills (combination pills) have estrogen and progesterone, and they work by stopping ovulation. At first, the pill gives a steady dose of estrogen with no peak, so there’s no signal for your ovaries to release an egg.

Then the pill delivers a fixed level of progesterone to stop the uterine lining from growing.

Finally, most pills have a week of placebos, which make hormone levels fall and your period start.

From: PMS and the Pill WebMD Medical Reference

SOURCES:

Medscape. “Premenstrual Syndrome.”

American Academy of Family Physicians. ”Premenstrual Syndrome (PMS).”

Office on Women’s Health. “Premenstrual Syndrome (PMS) fact sheet.”

National Women’s Health Resource Center. “Birth Control Pills: Benefits.”

American Society for Reproductive Medicine. “Noncontraceptive Benefits of Birth Control Pills.”

National Women’s Health Resource Center. “Birth Control Pills: Overview.”

Association of Reproductive Health Professionals. “Understanding Menstrual Suppression.”

Reviewed by Renee A. Alli on November 10, 2018

SOURCES:

Medscape. “Premenstrual Syndrome.”

American Academy of Family Physicians. ”Premenstrual Syndrome (PMS).”

Office on Women’s Health. “Premenstrual Syndrome (PMS) fact sheet.”

National Women’s Health Resource Center. “Birth Control Pills: Benefits.”

American Society for Reproductive Medicine. “Noncontraceptive Benefits of Birth Control Pills.”

National Women’s Health Resource Center. “Birth Control Pills: Overview.”

Association of Reproductive Health Professionals. “Understanding Menstrual Suppression.”

Reviewed by Renee A. Alli on November 10, 2018

NEXT QUESTION:

How does the birth control pill work on symptoms of premenstrual syndrome (PMS)?

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