Document Type

Article

Publication Date

10-2008

Source Publication

Fertility and Sterility

Abstract

The purpose of this study was to determine the variability in length of the fertile phase of the menstrual cycle with 140 participants who produced 1,060 cycles with an electronic hormonal fertility monitor. The length of the fertile phase, as defined by the first day with a threshold level of urinary E3G and ending with a second day above a threshold of LH, varied from <1 to>7 days, with the most frequent length being 3 days.

Comments

Originally published in Fertility and Sterility, Volume 90, No. 4 (October 2008), DOI: 10.1016/j.fertnstert.2007.10.050, http://dx.doi.org/10.1016/j.fertnstert.2007.10.050