PregnancyTracker
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PregnancyTracker

Track your pregnancy week by week, calculate due dates, ovulation, and more. Evidence-based tools and resources for every stage of your journey.

Calculators

  • Due Date Calculator
  • Pregnancy Week Calculator
  • Ovulation Calculator
  • Conception Calculator

Resources

  • Week by Week
  • First Trimester
  • Pregnancy Symptoms
  • Nutrition Guide

Medical Disclaimer

This website provides general information and is not a substitute for professional medical advice. Always consult your healthcare provider for medical decisions.

© 2026 PregnancyTracker. All rights reserved.

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    First Trimester

    Week 3

    Your Baby's Development

    ProgressWeek 3 of 40
    Size
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    Length
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    Weight
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    Medical Disclaimer

    Every pregnancy is unique. The information provided is for educational purposes and should not replace professional medical advice. Always consult your healthcare provider with any concerns.