Length of gestation and parameters of the menstrual cycle
Schwartz, D.; Boyce, A.; Mayaux, M.J.
Journal de Gynecologie Obstetrique et Biologie de la Reproduction 5(7): 865-869
1976
ISSN/ISBN: 0368-2315 PMID: 1002954 Document Number: 107479
In studying the BBT curves of 433 conceptional cycles, no evidence was found of any correlation between duration of gestation counted from "zero" day, the last day of the hypothermic phase, and various parameters measuring durations or temperatures evaluated from the curves. There is, in particular, no positive correlation with the duration of the hypothermic phase; and the authors were able, by taking into account the error made in replacing ovulation by "zero" day, to deduce that the "true" duration of gestation is not correlated with the "true" length of the preovulatory phase or indeed with the length of the cycle.