Pregnancy Due Date Calculator

A pregnancy due date calculator is an online tool designed to estimate the expected delivery date of a baby. It uses either the first day of the last menstrual period or the conception date to provide an approximate due date, helping expectant parents and healthcare providers plan for the arrival of the new baby.

How to Use the Pregnancy Due Date Calculator

Select the calculation method: Last Menstrual Period (LMP) or Conception Date
Enter the date of your last menstrual period or the conception date
If known, input the length of your average menstrual cycle
Click the "Calculate" button
View your estimated due date and other pregnancy milestones

Features of the Pregnancy Due Date Calculator

Calculates due date based on Last Menstrual Period or Conception Date
Provides estimated conception date (if calculating from LMP)
Shows important pregnancy milestones and trimesters
Adjusts calculations based on average menstrual cycle length
Offers a week-by-week pregnancy timeline
Easy-to-use interface with clear results
Mobile-friendly design for on-the-go access

Who Should Use This Calculator?

Expectant mothers and their partners
Women trying to conceive
Obstetricians and gynecologists
Midwives and doulas
Family planning professionals
Anyone interested in understanding pregnancy timelines

FAQ

How accurate is the pregnancy due date calculator?

While our calculator provides a good estimate, only about 5% of babies are born on their exact due date. The due date is an estimate and can be affected by various factors.

What if I don't know the first day of my last menstrual period?

If you don't know your LMP, you can use the conception date if known. For the most accurate results, consult with your healthcare provider who can use ultrasound measurements to determine gestational age.

Can I use this calculator if I had IVF or fertility treatments?

For IVF or other fertility treatments, it's best to consult with your fertility specialist or obstetrician for the most accurate due date calculation, as it may differ from natural conception calculations.

Does the calculator account for leap years?

Yes, our calculator takes leap years into account when determining the due date and pregnancy milestones.

Important Note

This pregnancy due date calculator is for informational purposes only and should not replace professional medical advice. Always consult with your healthcare provider for personalized information about your pregnancy.