Pregnancy Due Date Calculator

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Pregnancy Due Date Calculator

Estimate your baby's due date based on your last menstrual period (LMP). Track your pregnancy progress with gestational age and trimester information. A vital tool for expecting parents.

Inputs

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Result

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More Information

Understanding the Pregnancy Due Date Calculator

This calculator provides an estimated due date (EDD) for your baby based on the first day of your last menstrual period (LMP). It's a fundamental tool for expecting parents to track their pregnancy journey.

How is the Due Date Calculated? (Naegele's Rule)

The calculation is based on a method called Naegele's Rule, which is the standard for most healthcare providers. The formula is simple:

Estimated Due Date = First Day of LMP + 280 days (or 40 weeks)

This method assumes a standard 28-day menstrual cycle where ovulation occurs on day 14. If your cycle is typically longer or shorter, your actual due date might vary. For the most accurate dating, especially if your cycles are irregular, a first-trimester ultrasound is the gold standard.

Key Terms Explained

  • Gestational Age: This is the term for how far along the pregnancy is. It's measured in weeks from the first day of your last menstrual period.
  • Trimesters: A pregnancy is divided into three trimesters, each marking a different stage of fetal development:
    • First Trimester: Week 1 to Week 12
    • Second Trimester: Week 13 to Week 27
    • Third Trimester: Week 28 to Week 40+

Nutrition During Pregnancy

A healthy, balanced diet is crucial during pregnancy for both you and your baby. Focus on whole foods rich in essential nutrients. Always consult with your doctor or a registered dietitian for personalized advice.

High-Quality Protein

Non-Vegetarian

Chicken Breast, Salmon, Tuna, Eggs, Lean Beef.

Vegetarian

Greek Yogurt, Cottage Cheese, Lentils, Paneer, Whey Protein.

Vegan

Tofu, Tempeh, Edamame, Chickpeas, Seitan, Lentils, Vegan Protein Powder.

Complex Carbohydrates

These provide sustained energy. Sources are generally the same for all diets: Brown Rice, Quinoa, Sweet Potatoes, Oats, Whole Wheat Bread, Millets.

Healthy Fats

Non-Vegetarian

Fatty Fish (Salmon, Mackerel), Egg Yolks, Avocado, Nuts & Seeds, Olive Oil.

Vegetarian

Avocado, Nuts & Seeds, Olive Oil, Ghee, Full-Fat Dairy.

Vegan

Avocado, Nuts & Seeds, Olive Oil, Flaxseed Oil, Chia Seeds.

Frequently Asked Questions