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The timing of the “fertile window” in the menstrual cycle: day specific estimates from a prospective study
L-type (Loaf) Cervical Secretion Crystallization Directionality Biomarker Study
PDF] Prediction of the potentially fertile period by urinary hormone measurements using a new home-use monitor: comparison with laboratory hormone analyses.
Ovulation and fertile days
How long is a menstrual cycle
What's a fertile window & how is it connected to pregnancy?
The Fertile Window and Biomarkers: A Review and Analysis of Normal Ovulation Cycles
Frontiers Fertility Awareness-Based Methods for Women's Health and Family Planning
Fertile window and biophysical biomarkers of cervical secretion in subfertile cycles: a look at biotechnology applied to NaProTechnology
Medicina, Free Full-Text
Fertility awareness - Wikipedia
Physiologic parameters of the menstrual cycle that can be used to
Figure 1 from The length of the fertile window is associated with the chance of spontaneously conceiving an ongoing pregnancy in subfertile couples.