How Do You Calculate Due Date

                                                               How do you calculate due date?

There are two main methods for calculating a due date :

1. Naegele's Rule : This is the most common method used by healthcare professionals. It assumes a 28-day menstrual cycle and ovulation occurring 14 days after the first day of your last menstrual period (LMP).

Here are the steps to calculate your due date using Naegele's Rule :

1. Identify the first day of your last menstrual period (LMP).

2. Add one year to that date.

3. Count back 3 months from the new date.

4. Add 7 days to the new date.

Example :

1. LMP: January 1st, 2024

2. Add 1 year: January 1st, 2025

3. Count back 3 months: October 1st, 2024

4. Add 7 days: October 8th, 2024 (Estimated due date)

2. Ultrasound : Early pregnancy ultrasounds can also be used to estimate the due date. This method is often considered more accurate than Naegele's Rule, especially for women with irregular menstrual cycles or uncertain LMP dates.

It's important to remember that both methods provide estimated due dates, and the actual delivery date can vary by up to two weeks before or after the estimated date.

Here's a table summarizing the two methods :

It's crucial to consult your healthcare provider for the most accurate due date estimate and personalized pregnancy guidance.