ObGyn Intelligence

OBMD Pregnancy &
Women's Health Tools

Free, evidence-based calculators built by an ObGyn for patients and clinicians. No ads. No data collection. No pharmaceutical sponsors.

🩺 Physician-created 📊 Evidence-based 🔒 No data stored
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Pregnancy

6 tools
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Due Date Calculator
Calculate your estimated due date from LMP, conception, or ultrasound
Live › 💊
Aspirin Preeclampsia Check
ACOG/USPSTF screening for low-dose aspirin to prevent preeclampsia
Live › 📉
Miscarriage Risk Estimator
Week-by-week probability based on gestational age, age, and history
Live › 💓
Viability Estimator
Neonatal survival and outcome estimates by gestational age
Coming soon › 🏥
When to Go to Labor & Delivery
Symptom checker to help decide when to call or go in
Coming soon › 👶
Fetal Movement Interpreter
Track kick counts and understand what movement patterns mean
Coming soon ›
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Fertility

3 tools
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Ovulation Estimator
Predict your fertile window based on cycle length and history
Live › 🔍
Conception Date Calculator
Calculate when conception likely occurred from birth date or due date
Live › 🧬
IVF Dating Calculator
Due date from embryo transfer date (fresh or frozen, Day 3 or Day 5)
Coming soon ›
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Postpartum

2 tools
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Postpartum Warning Sign Checker
Identify symptoms that need urgent medical attention after delivery
Coming soon › 🩸
Bleeding Safety Checker
Assess whether postpartum bleeding is within normal range
Coming soon ›
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More Tools

5 tools
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hCG Calculator
Doubling time, 48-hour rise, and evidence-based viability assessment
New › 🎯
Interactive Pregnancy Wheel
Drag-to-rotate digital pregnancy wheel with week markers
New › 📆
Pregnancy Calendar
Full 10-month printable calendar with gestational age or fetal weight
Live › 👁️
Baby Eye Color Calculator
Predicted eye color probabilities based on parent genetics
Live › 🌡️
Menopause Treatment Navigator
Personalized treatment options based on symptoms and health history
Live ›