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Crawford, Natalie M.; Pritchard, David A.; Herring, Amy H.; & Steiner, Anne Z. (2017). A Prospective Evaluation of Luteal Phase Length and Natural Fertility. Fertility and Sterility, 107(3), 749-755. PMCID: PMC5337433


OBJECTIVE: To evaluate the impact of a short luteal phase on fecundity.
DESIGN: Prospective time-to-pregnancy cohort study.
SETTING: Not applicable.
PATIENT(S): Women trying to conceive, ages 30-44 years, without known infertility.
INTERVENTION(S): Daily diaries, ovulation prediction testing, standardized pregnancy testing.
MAIN OUTCOME MEASURE(S): Subsequent cycle fecundity.
RESULT(S): Included in the analysis were 1,635 cycles from 284 women. A short luteal phase (CONCLUSION(S): Although an isolated cycle with a short luteal phase may negatively affect short-term fertility, incidence of infertility at 12 months was not significantly higher among these women.


Reference Type

Journal Article

Year Published


Journal Title

Fertility and Sterility


Crawford, Natalie M.
Pritchard, David A.
Herring, Amy H.
Steiner, Anne Z.