🍼 Pregnancy Due Date Calculator

Pregnancy Due Date Calculator is a smart, reliable, and easy-to-use tool that helps you estimate your baby’s expected date of arrival. Designed for moms-to-be, partners, and even healthcare professionals, this tool uses different methods of pregnancy dating to give you the most accurate estimate possible.

Whether you’re tracking your pregnancy using the first day of your last menstrual period (LMP), know your conception date, recently had an ultrasound, or underwent IVF (in vitro fertilization), this calculator provides flexibility to meet your needs.

Why Use This Calculator?

Understanding your due date helps you:

• Prepare for each trimester with confidence

• Track fetal development week by week

• Schedule appointments and tests at the right time

• Make informed decisions with your care provider

The calculator also allows you to adjust your cycle length, which can affect ovulation timing and due date estimation — especially useful if your cycle isn’t the standard 28 days.

Calculation Methods Supported

1. From LMP (Last Menstrual Period)
   Adds 280 days (40 weeks) to the first day of your last period, with optional cycle length adjustment.

2. From Conception Date
   Adds 266 days (38 weeks) from the estimated day of ovulation or fertilization.

3. From Ultrasound Date
   Input the date of your ultrasound along with the gestational age at that time (e.g., 9 weeks 2 days) to calculate the expected due date.

4. From IVF Transfer Date
   Use your embryo transfer date, with the option to select Day 3 or Day 5 embryos. The calculator adjusts accordingly.

📱 Features at a Glance

• Beautiful, mobile-responsive design

• Easy and fast to use with instant results

• Cute icons and clear formatting

• Accurate methods trusted by professionals

• Supports irregular cycles and IVF protocols

❓ Frequently Asked Questions (FAQs)

🤰 How is my due date calculated?

Your due date is calculated based on the method you choose. The most common method is counting 280 days (40 weeks) from the first day of your last menstrual period (LMP). Other methods like conception date or IVF use different starting points but aim to reach the same 40-week total.

🧬 What if I have irregular periods?

No problem! You can adjust the cycle length in the calculator. A longer or shorter cycle affects your ovulation timing, and the calculator accounts for this to improve accuracy.

🩻 Can I use my ultrasound scan?

Yes! Simply choose “From Ultrasound Date” and enter the date of your scan plus the gestational age given in the results (e.g., 8 weeks 5 days). This method is especially helpful if you’re unsure of your LMP.

🧪 I conceived via IVF. Can I use this?

Absolutely. The calculator includes IVF transfer date support, allowing you to select whether your embryo was transferred on day 3 or day 5, which adjusts the due date accordingly.

📆 Is this calculator 100% accurate?

No due date calculator can guarantee the exact birth date. It’s an estimate based on standard gestational timelines. Most babies are born between 37 and 42 weeks. The actual date depends on many individual factors.

🌐 Is this tool free to use?

Yes! This calculator is 100% free and can be used as often as you like, whether you’re tracking your own pregnancy or helping someone else.

🎉 Start your pregnancy journey with confidence today!

With just a few clicks, you’ll receive a personalized estimated due date to help guide your pregnancy. Try the Pregnancy Due Date Calculator now and take the guesswork out of planning for your baby!