Pregnancy Due Date Calculator | Find Your EDD
When you find out you're pregnant, one of the first questions that comes to mind is: "When is my baby due?" That’s where a Pregnancy Due Date Calculator comes in — it gives you a reliable estimate of your Estimated Due Date (EDD) based on medical standards.
Knowing your EDD helps you track your baby’s development, plan prenatal care, and get ready for delivery. Here’s how it works, why it matters, and where to find an accurate calculator online.
What Is a Due Date?
Your due date is the estimated day your baby is expected to be born. It’s calculated as 40 weeks from the first day of your last menstrual period (LMP) — not from the day you conceived. That’s because most people don’t know their exact ovulation or conception date, but the LMP is usually easier to track.
However, only about 5% of babies are actually born on their due date. Most births happen between 37 and 42 weeks — so the due date is more of a target than a guarantee.
Why Use a Pregnancy Due Date Calculator?
A Pregnancy Due Date Calculator simplifies the math and removes guesswork. Whether you're using your LMP, conception date, ovulation window, or IVF transfer date, a good calculator can give you an accurate EDD in seconds.
Benefits of using a due date calculator:
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Plan prenatal appointments and key tests
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Track fetal development week-by-week
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Estimate maternity leave and delivery window
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Mentally and physically prepare for childbirth
How Is the Due Date Calculated?
There are several methods to calculate your EDD:
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LMP (Last Menstrual Period)
The most common method. Add 280 days (or 40 weeks) to the first day of your last period. -
Conception Date
If you know the exact date you conceived, add 266 days (38 weeks) to that date. -
Ultrasound Dating
In early pregnancy (usually around 8–12 weeks), an ultrasound can help confirm or adjust your EDD based on fetal measurements. -
IVF Due Date
If you conceived through IVF, the embryo transfer date is used for precise dating.
Try This Free Pregnancy Due Date Calculator
Need a fast, accurate way to find your due date? Use this free tool:
👉 Pregnancy Due Date Calculator
Just enter the date of your last period or conception, and it will instantly give you:
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Your EDD
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What trimester you’re in
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A full pregnancy timeline
It’s simple, free, and based on standard medical calculations.
What Happens After You Get Your EDD?
Your due date becomes the foundation for your entire pregnancy timeline. Your doctor or midwife will use it to schedule ultrasounds, checkups, bloodwork, and important screenings like:
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NT Scan (11–13 weeks)
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Anatomy Scan (around 20 weeks)
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Glucose Screening (24–28 weeks)
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Group B Strep Test (35–37 weeks)
It’s also how your healthcare provider determines if a baby is born early (preterm), on time (term), or late (post-term).
Final Thoughts
A due date is more than a countdown — it’s your guide for the next 9 months. Whether you’re newly pregnant or doing IVF, using a Pregnancy Due Date Calculator gives you clarity from the start.
🔗 Ready to find out your EDD?
Use the trusted, free tool here:
👉 https://www.mypregnancycalc.com/en/calculators/due-date
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