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FREE WOMEN'S HEALTH TOOL Β· FIGO Β· FOGSI Β· ACOG Β· WILCOX 1995 Β· INDIA-CALIBRATED

Period & Cycle
Tracker.

Personalised menstrual cycle predictions with next 3 period dates, probability-graded fertile window, visual cycle calendar, cycle health analysis, and due date calculator β€” built on FIGO, FOGSI, and ACOG clinical guidelines.

FIGO/FOGSI Normal Range 24–38 Days
Wilcox 1995 Fertile Window Model
Visual 3-Month Cycle Calendar
FOGSI Red-Flag Cycle Alerts

Enter Your Cycle Dates

3-step guided entry Β· Personalised predictions using FIGO / FOGSI norms

1
Profile
2
Dates
3
Details
This tool provides cycle-literacy support and approximate predictions only. It is not a contraceptive method β€” calendar-based methods have 12–24% typical-use pregnancy rates per year (WHO/ACOG). Always consult a gynaecologist for reproductive health decisions.
Age & Primary Goal * Adolescents (<18, within 3 years of menarche) use ACOG range 21–45 days; adults use FIGO standard 24–38 days.
Goal
Known Conditions * Select all that apply β€” used only to personalise educational messaging. Does not alter the core formula.
Hormonal Contraception * Hormonal contraception suppresses natural ovulation β€” fertile-window prediction does not apply if currently on hormonal contraception.
NEXT PERIOD PREDICTION
Complete the form β†’
AVG CYCLE
β€”
days
VARIABILITY
β€”
day range
Form progress
Step 1 of 3

WOMEN'S HEALTH COACHING

Work With a Specialist

Personalised cycle support, nutrition for reproductive health, and PCOS/thyroid guidance from our dietitians.

Book Consultation β†’

WHAT THIS TRACKER GIVES YOU

πŸ“…
Next 3 Period DatesPersonalised date ranges using your cycle average
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Visual Cycle Calendar3-month colour-coded period & fertility calendar
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Fertile WindowProbability-graded using Wilcox 1995 day-specific data
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Cycle Health AnalysisFIGO/FOGSI normal range check with red-flag alerts
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Due Date CalculatorNaegele's rule adjusted for your actual cycle length

CLINICAL REFERENCES

FIGO (2011)Nomenclature and classification of AUB. Int J Gynaecol Obstet 113(1):3–13
Wilcox AJ et al. (1995)Timing of sexual intercourse in relation to ovulation. NEJM 333:1517
ACOG (2015)Menstruation in Girls and Adolescents. Committee Opinion 651
AWHS (2022)Apple Women's Health Study β€” 165,668 cycles, 12,608 participants
WHO (2018)Family Planning Handbook β€” Fertility Awareness Methods

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⚠️ Important: This tracker is for educational and cycle-literacy purposes only. It is not a contraceptive method. Calendar-based methods have 12–24% typical-use pregnancy rates per year (WHO/ACOG). Always consult a qualified gynaecologist or obstetrician for reproductive health, contraception, and fertility decisions. This tool does not diagnose any medical condition.