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Tools

Pregnancy Calculator

Obstetric dating is confirmed by ultrasound in care. This tool uses a standard menstrual dating rule.

Pregnancy Calculator

YearMonthDay
Due date (280d rule)
Mar 8, 2026
Gestational age
~48 weeks
Trimester
3

These tools provide general fitness estimates only and are not a substitute for professional medical advice.

How to Use This Tool

  1. Enter the first day of the last menstrual period.
  2. Review EDD and approximate gestational age.
  3. See your clinician for dating and care.

Features

  • 280-day Naegele-style EDD from LMP
  • Trimester label
  • Educational only

Frequently Asked Questions

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