Use our free Pregnancy Due Date Calculator to estimate your baby’s due date quickly and accurately. Learn how due dates are calculated, key pregnancy milestones, and tips for tracking your pregnancy week by week.

Pregnancy Due Date Calculator

Pregnancy Due Date Calculator

Estimated Due Date:

Countdown:

Pregnancy Progress

Your Pregnancy Timeline

What is a Pregnancy Due Date Calculator?

A Pregnancy Due Date Calculator is a simple tool that helps you estimate your baby’s expected arrival date based on key information like your Last Menstrual Period (LMP) and average cycle length. It uses the Naegele’s Rule, which adds 280 days (40 weeks) to the first day of your last menstrual period to calculate the due date.

How to Use a Pregnancy Due Date Calculator

Using a due date calculator is easy! Here’s how it works:

Enter Your Last Menstrual Period (LMP): This is the first day of your last period.

Provide Your Average Cycle Length: The typical length of your menstrual cycle (usually 28 days).

Calculate: The tool will estimate your due date and provide a week-by-week pregnancy timeline.

FAQs About Pregnancy Due Dates

How accurate is a due date calculator?

Due date calculators are highly accurate if you have a regular menstrual cycle and know your LMP. However, ultrasounds provide the most precise due date.

Can my due date change?

Yes, your doctor may adjust your due date based on ultrasound measurements or other factors.

What if I don’t know my LMP?

If you don’t know your LMP, an ultrasound can help estimate your due date.

What percentage of babies are born on their due date?

Only about 5% of babies are born on their exact due date. Most arrive within a week before or after.

Conclusion

A Pregnancy Due Date Calculator is an essential tool for every expectant parent. It helps you plan for your baby’s arrival, track your pregnancy progress, and stay informed about key milestones. Whether you’re in your first trimester or nearing your due date, our calculator and guide will support you every step of the way.