Pregnancy Calculator

Calculate your due date, current pregnancy week, trimester, and key milestones from your last menstrual period (LMP). Track your pregnancy journey week by week.

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How to Use the Pregnancy Calculator

  1. Enter the first day of your last menstrual period (LMP).
  2. Adjust cycle length if different from the standard 28 days.
  3. View your due date, current week, trimester, and progress.
  4. Scroll through key milestones and development timeline.

Features

  • Due date calculation using Naegele's rule (adjusted for cycle length)
  • Current week and day tracking
  • Trimester identification with progress bar
  • 17 key pregnancy milestones with descriptions
  • Estimated conception date
  • 100% client-side -- no data sent to any server

Disclaimer

This calculator provides estimates based on Naegele's rule. Actual due dates may vary. Consult your healthcare provider for accurate dating.

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Disclaimer: This tool is provided as-is for informational and educational purposes only.

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