ObGyn Intelligence — Evidence Matters

Clinical Tools & Resources

Evidence-based interactive tools for clinicians, nurses, and patients — built on peer-reviewed guidelines.

Preconception

Pregnancy

Am I Pregnant?
Early symptom and pregnancy test timeline guide
Screener
Implantation & Pregnancy Test Calculator
When to test based on ovulation or conception date
Calculator
Due Date Calculator
Estimated due date from LMP or conception date
Calculator
Reverse Due Date Calculator
Calculate conception date from a known due date
Calculator
Pregnancy Wheel
Gestational age and due date calculator — digital pregnancy wheel
Calculator
Pregnancy Calendar
Week-by-week milestones and fetal development
Guide
Weekly Pregnancy Emails
Personalized weekly emails based on your due date — development, symptoms & tips
New
Pregnancy A to Z
Comprehensive pregnancy reference from A to Z
Guide
Pregnancy Symptom Checker
Trimester-specific symptom checker — what's normal, what's not
Screener
Pregnancy Warning Signs: Call or Go In?
Know when to call 911, your doctor, or go to Labor & Delivery
Guide
Pregnancy Blood Pressure Monitor
Track and interpret blood pressure readings during pregnancy
Calculator
Preeclampsia Risk Assessment
First-trimester risk screening per ACOG guidelines
Calculator
Low-Dose Aspirin Eligibility Check
ACOG-aligned aspirin prophylaxis eligibility screening
Screener
hCG Calculator
Interpret serial hCG levels in early pregnancy
Calculator
Pregnancy Lab Reference
Normal laboratory reference ranges by trimester
Guide
Ultrasound Report Interpreter
Plain-language interpretation of OB ultrasound findings
Guide
Fetal Measurements
Ultrasound biometry percentile calculator — BPD, HC, AC, FL
Calculator
Fetal Weight Calculator
Estimated fetal weight from ultrasound biometry measurements
Calculator
Miscarriage Risk Calculator
Age and gestational age-based pregnancy loss risk
Calculator
Miscarriage or Ectopic?
Symptom-guided differential for early pregnancy complications
Screener
Pregnancy Loss Guidelines
Evidence-based management guidance after pregnancy loss
Guide
Baby Kick Count
Fetal movement monitoring and kick counting tool
Timer
Preterm Birth Risk Calculator
Individualized preterm delivery risk assessment
Calculator
Preterm Outcome Calculator
Neonatal outcomes by gestational age at delivery
Calculator
Preterm Birth Prevention
Evidence summary for preterm birth prevention interventions
Guide
Preterm Prevention Recommendations
Guideline-aligned recommendations for preterm birth prevention
Guide
Cerebral Palsy Risk Calculator
Intrapartum risk factor assessment for cerebral palsy
Calculator
Postpartum Hemorrhage Risk Tool
Antepartum PPH risk assessment for delivery planning
Calculator
Labor Induction Decision Support
ACOG-aligned induction eligibility and Bishop score guidance
Guide
Contraction Timer
Track frequency and duration of contractions in real time
Timer
Delivery Clock
Second-stage labor timing and documentation
Timer
Labor Simulator
Interactive labor progress visualization and simulation
Guide
Partograph
Active labor progress monitoring — digital partograph
Timer
Smart Birth Plan
Evidence-based interactive birth plan builder — stoic principles, 2026 guidelines, printable
New
Birth Plan Builder
Structured birth preference document builder
Guide
Home Birth Eligibility
Evidence-based risk stratification for planned home birth
Screener
Home Birth Informed Consent
Evidence-based consent checklist for planned home birth
Guide
GDM Risk & Glucose Guide
Gestational diabetes risk assessment, screening timing, and glucose test interpretation
Calculator
Medication Safety in Pregnancy
Evidence-based medication reference for pregnancy and lactation — FDA PLLR framework
Guide
VBAC Eligibility Calculator
TOLAC eligibility and success prediction — ACOG PB 205 and Grobman nomogram
Calculator
100 Questions: First Trimester
AI-powered Q&A for weeks 1 to 13
Q&A
100 Questions: Second Trimester
AI-powered Q&A for weeks 14 to 27
Q&A
100 Questions: Third Trimester
AI-powered Q&A for weeks 28 to 40
Q&A
100 Questions: Labor & Delivery
AI-powered Q&A for labor and delivery
Q&A
100 Questions: OB Ultrasound
AI-powered Q&A on prenatal ultrasound and imaging
Q&A
100 Questions: Lab Tests
AI-powered Q&A on pregnancy lab tests and results
Q&A
100 Questions: Maternal-Fetal Medicine
AI-powered Q&A on maternal-fetal medicine topics
Q&A

Postpartum

Women's Health

Infertility

Other

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