Research library
Evidence over anecdote.
Each entry summarizes a study, explains why it matters, and is honest about its limitations. Original sources are linked throughout.
Human Reproduction
2007
Effectiveness of the Sensiplan sympto-thermal method
A prospective study of 900 women using the Sensiplan sympto-thermal method, reporting a perfect-use Pearl Index of 0.4 and a typical-use index of 1.8.
Linacre Quarterly
2009
Marquette Method postpartum effectiveness
An evaluation of the Marquette Method postpartum protocol in breastfeeding women.
Obstetrics & Gynecology
2018
Accuracy of fertility awareness apps
A review of consumer fertility apps and their alignment with established methods.
Fertility & Sterility
2015
Validation of urinary LH monitoring at home
Comparison of consumer LH monitors against laboratory measurement.
Contraception
1997
Effectiveness of the Lactational Amenorrhea Method
Original validation of LAM under its three strict criteria.
Fertility & Sterility
1981
WHO multicenter trial of the Billings Method
Foundational multinational trial of the Billings Ovulation Method.
Linacre Quarterly
2011
Creighton charting and reproductive health diagnosis
Use of standardized cervical mucus charts for diagnostic and treatment purposes.