Curious to Know Your Estimated Due Date?

Our easy-to-use pregnancy calculator is the number one most popular way to calculate your due date based on various methods.

Last Menstrual Period

Conception Date

IVF Transfer Date

Ultrasound Date

First day of your last menstrual period

Your Estimated Due Date Is:

September 15, 2023

You are currently 12 weeks and 3 days pregnant.

You are in your first trimester.

How Does the Pregnancy Due Date Calculator Work?

Our Pregnancy Due Date Calculator is designed to provide you with an estimated due date by using specific inputs like your Last Menstrual Period (LMP) or Conception Date.

To use our tool, simply enter one of these key dates into the input fields. Based on the data you provide, the calculator will process the information and estimate your due date.

How Accurate is My Pregnancy Due Date?

Estimating your due date is an important part of pregnancy planning, but it’s essential to remember that it is an estimate. While the calculation can provide a general idea of when you can expect to give birth, the exact timing can vary for several reasons.

Most pregnancies are delivered within a week or two before or after the estimated due date, with only about 5% of babies actually being born on their exact due date.

Frequently Asked Questions

Can my due date change?

Yes, due dates can change during pregnancy. For example, an ultrasound may adjust a due date because of the increased accuracy of using fetal measurements or if your cycle is longer or shorter than 28 days this can lead to a due date adjustment as well.

What if I already know my due date?

Even if you already know your due date, our Pregnancy Due Date Calculator can still be incredibly helpful. By entering your known due date the calculator can provide you with a detailed pregnancy timeline, outlining key milestones and symptoms, important prenatal tests, or reminders for prenatal visits based on your known due date.

Which calculation method is most accurate?

IVF and ultrasound methods tend to offer more precise due date estimates, as these are based on specific, trackable events like embryo transfer dates or early fetal measurements. The LMP method assumes a 28-day cycle, which may not apply to women with shorter or longer cycles.

Free Pregnancy Resources Are Available for You

Whether you are trying to get pregnant, are pregnant, preparing to give birth or have an infant the Pregnancy Questions Center is a trusted resource for the most important questions.