A member asked:

Last few cycles had pink & brown spotting 2days before period (cd24). next day, nothing. next day full flow(cd26). which day ends my luteal phase?

2 doctors weighed in across 2 answers
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Prob CD 26 : There is not really a way to know the exact answer but i would count the first day of full flow. How does knowing the end of your luteal phase help you though?

Answered 5/28/2013

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Dr. Bryan Treacy answered

Specializes in Gynecology

Variable: The luteal phase ends when Progesterone production from the ovary drops if pregnancy does not occur. Usually this occurs with the onset of what a woman knows is her period. Premenstrual spotting may indicate slightly low Progesterone levels during the luteal phase.

Answered 6/30/2014

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