OB Pregnancy Wheel Made Easy
No in-app products collected for this app.
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| Spain | 25%1 | 4.00 | |
| Ghana | 25%1 | 5.00 | |
| Greece | 25%1 | 1.00 | |
| United States | 25%1 | 5.00 | |
| United Arab Emirates | <1%0 | — | |
| Afghanistan | <1%0 | — | |
| Antigua And Barbuda | <1%0 | — | |
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Description
The Pregnancy Calculator
OB Wheel brings the precision of clinical pregnancy dating tools to your iPhone, iPad, and Mac. Whether you're an obstetrician, midwife, nurse, medical student, or expectant parent, OB Wheel provides accurate, evidence-based pregnancy calculations following ACOG Committee Opinion No. 700.
ACCURATE CALCULATIONS, MULTIPLE METHODS
Calculate due dates using any dating method:
Last Menstrual Period (LMP)
Conception/Ovulation Date
Ultrasound Dating with ACOG-compliant redating thresholds
IVF/ART with embryo transfer support (Day 3, 5, or 6)
Known Due Date reverse calculation
COMPREHENSIVE PREGNANCY INFORMATION
Every calculation provides:
Estimated Due Date with countdown
Current Gestational Age in weeks and days
Trimester milestones (13w, 27w, 39w)
Expected fetal size and weight
Full term date (39 weeks)
Interactive OB Wheel visualization
PATIENT MANAGEMENT
Keep track of multiple pregnancies:
Save patients with pregnancy records
Add ultrasound measurements
Monitor redating recommendations
Store clinical notes
Track pregnancy progression over time
BEAUTIFUL, PROFESSIONAL INTERFACE
Clean, medical-grade design
Dark mode support
Haptic feedback for interactions
Accessibility features throughout
Customizable display preferences
PRIVACY FIRST
All calculations performed on-device
Patient data stored securely in your private iCloud
No third-party tracking
HIPAA-minded design principles
You own your data
PERFECT FOR:
Healthcare Professionals:
Obstetricians and gynecologists
Midwives and nurse practitioners
Family medicine physicians
OB/GYN residents and medical students
Labor & delivery nurses
Expectant Parents:
Track your pregnancy week by week
Understand your ultrasound dates
Know when you'll reach each trimester
Share milestones with family
FEATURES AT A GLANCE
Multiple dating methods (LMP, conception, ultrasound, IVF)
Patient and pregnancy tracking
Ultrasound measurement database
Interactive pregnancy wheel
Fetal growth estimates
Clinical reference materials
iCloud sync across devices
Share calculations easily
Offline functionality
No subscription required
EVIDENCE-BASED ACCURACY
All calculations follow guidelines from:
ACOG Committee Opinion
Standardized first-trimester CRL dating
Evidence-based ultrasound redating criteria
Standard 280-day pregnancy calculation
MEDICAL DISCLAIMER
OB Wheel is intended for informational and educational purposes. It should not replace professional medical advice, diagnosis, or treatment. Always consult with qualified healthcare providers for pregnancy-related decisions.