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. Author manuscript; available in PMC: 2021 Aug 13.
Published in final edited form as: Psychoneuroendocrinology. 2020 Oct 13;123:104895. doi: 10.1016/j.psyneuen.2020.104895

Table 1b.

Overview of phasing procedures for exploratory phases and commonly used phasing procedures to use with caution.

Phasing Procedures for exploratory phases (Recommended) Phasing Procedures to Use with Caution
Pre-ovulatory Post-ovulatory Menstrual week Full premenstrual week
Hormonal Status and Definitions Strong E2 peak Falling E2, rising P4 End of withdrawal, low E2/P4 High E2/P4, then abrupt falling E2/P4
Counting Methods N/A N/A (1) Day of menstrual onset to day +7 following menstrual onset (1) Day −7 to day −1 before menstrual onset
LH-Test Definitions (1) Day −2 to −1 before positive test (1) day of and day +1 following positive test N/A (2) Day +8 to day +14 following positive test
BBT Definitions (1) Day −2 to −1 before nadir (1) day of and day +1 of nadir N/A (2) Day +8 to day +14 following nadir