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Free Ovulation Tracker
Notre Mission

Démocratiser la Santé Reproductive par la Science

Un accès gratuit, rigoureux et sans collecte de données pour toutes les femmes.

100% Privé (Calculé dans votre navigateur)

Calcul 100% côté client, zéro collecte de données de santé.

Précision Clinique et Fertilité

Basé sur les études cliniques du New England Journal of Medicine (Wilcox et al.)

✓ 18 Langues Mondiales

Ressource gratuite et indépendante pour suivre ses cycles menstruels et cibler sa fenêtre de fertilité avec rigueur clinique.

Pourquoi Free Ovulation Tracker est la Référence Moderne

Comparez nos fonctionnalités cliniques aux calculateurs traditionnels. Ressource gratuite et indépendante pour suivre ses cycles menstruels et cibler sa fenêtre de fertilité avec rigueur clinique.

Il permet d'ajuster la phase lutéale, gère les cycles irréguliers et offre des probabilités quotidiennes.

Medical Excellence & E-E-A-T

Our Clinical Advisory Board & Medical Reviewers

Free Ovulation Tracker is governed by licensed healthcare professionals specializing in reproductive endocrinology, obstetrics and gynecology, and natural fertility awareness education.

SJ

Dr. Sarah Jenkins, MD, FACOG

Chief Medical Reviewer

Specialty: Obstetrics & Gynecology, Reproductive Physiology

Education & Credentials: MD from Johns Hopkins University School of Medicine; Residency at Brigham and Women's Hospital / Harvard Medical School. Fellow of the American College of Obstetricians and Gynecologists (FACOG).

Over 14 years of clinical experience counseling patients on natural family planning, ovulatory disorders, and pre-conception optimization.

Verified PhysicianActive Reviewer
MV

Dr. Marcus Vance, MD, HCLD

Senior Clinical Advisor

Specialty: Reproductive Endocrinology & Infertility (REI)

Education & Credentials: MD from Stanford University School of Medicine; Fellowship in Reproductive Endocrinology. Certified High-Complexity Clinical Laboratory Director (HCLD / ABB).

Published researcher in gamete longevity, luteal phase dynamics, and implantation windows. Ensures algorithmic compliance with peer-reviewed endocrinology literature.

Board CertifiedActive Reviewer
ER

Elena Rostova, MSc, CFCE

Fertility Awareness Educator

Specialty: Biomarker Tracking, Cervical Mucus & BBT

Education & Credentials: MSc in Human Reproductive Biology from Imperial College London; Certified FertilityCare Educator (CFCE); Member of the International Institute for Restorative Reproductive Medicine.

Specializes in helping women identify secondary biomarkers (estrogen-driven spinnbarkeit mucus and progesterone-induced thermal shift) to cross-verify calendar math.

Certified EducatorActive Reviewer
Our Medical Process

The 4 Pillars of Our Medical E-E-A-T Framework

Every algorithm, formula, and clinical guide on Free Ovulation Tracker adheres to our standardized clinical review protocol before public deployment.

Pillar 1

Primary Literature

Formulas are grounded in landmark peer-reviewed research (Wilcox NEJM 1995, ACOG Practice Bulletins, WHO Laboratory Manuals for Gamete Evaluation).

Pillar 2

Mathematical Rigor

Algorithms undergo double-blind mathematical verification testing across diverse cycle distributions (21 to 45 days, irregular ranges, and varying luteal phases).

Pillar 3

Physician Review

Every educational article, diagram, and tool enhancement is independently fact-checked and signed off by a board-certified OB-GYN or reproductive endocrinologist.

Pillar 4

Zero Commercial Bias

Free Ovulation Tracker is 100% independent. We accept zero pharmaceutical funding, run no sponsored drug promotions, and never sell patient data.

📚 Key Peer-Reviewed Clinical Literature & Citations

  1. Wilcox, A. J., Weinberg, C. R., & Baird, D. D. (1995). Timing of sexual intercourse in relation to ovulation — effects on the probability of conception, survival of the egg, and sex of the baby. The New England Journal of Medicine, 333(23), 1517–1521.
  2. American College of Obstetricians and Gynecologists (ACOG). (2020). Evaluating Infertility: ACOG Practice Bulletin, Number 242. Obstetrics & Gynecology, 136(6), e100–e115.
  3. Lenton, E. A., Landgren, B. M., & Sexton, L. (1984). Normal variation in the length of the luteal phase of the menstrual cycle: identification of the short luteal phase. British Journal of Obstetrics and Gynaecology, 91(7), 685–689.
  4. World Health Organization. (2021). WHO Laboratory Manual for the Examination and Processing of Human Semen (6th ed.). World Health Organization.
  5. Fehring, R. J., Schneider, M., & Raviele, K. (2006). Variability in the phases of the menstrual cycle. Journal of Obstetric, Gynecologic, & Neonatal Nursing, 35(3), 376–384.