Pregnancy Calculator

Calculate pregnancy weeks and due date

🔒 This tool runs fully in your browser. No files or data are uploaded.
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Weeks
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Days
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Trimester
Due Date: -
Estimated Conception Date: -
Days Until Due Date: -
Current Pregnancy Week: -

How to Use

  1. Select calculation method (LMP or Due Date)
  2. Enter the date based on your selected method
  3. Click "Calculate" to see pregnancy details
  4. View current week, trimester, due date, and more

FAQ

  • What is LMP?
    LMP (Last Menstrual Period) is the first day of your last menstrual period. Pregnancy is typically calculated as 40 weeks (280 days) from the LMP date.
  • How accurate is this calculator?
    This calculator uses standard pregnancy calculations (40 weeks from LMP). Actual due dates may vary. Always consult with your healthcare provider for accurate medical information.
  • What are the trimesters?
    First trimester: Weeks 1-13, Second trimester: Weeks 14-27, Third trimester: Weeks 28-40+.
Disclaimer: This calculator is for informational purposes only and is not a substitute for professional medical advice. Always consult with your healthcare provider for accurate pregnancy information and due dates. Pregnancy calculations are estimates based on standard 40-week (280-day) pregnancy length from LMP.