How to calculate the expected due date (EDD)

Filed in: Menstrual periods, pregnancy, Pregnancy guide, Transvaginal ultrasound.

Waiting to know your expected expiration date. We show you how to do it well.

How to calculate the expected due date (EDD) image

EDDOnce the pregnancy test in your home confirms the good news and enough time is given for the joy to sink, the next thing you want to know is the expected delivery date. But before sitting down to perform the calculations, it is advisable to keep in mind some points:

The calculated expected expiration date may or may not always be accurate. Depending on your pregnancy and fetal development, your delivery may occur sooner or sooner than your EDD. It is easier to calculate the date if you have a regular menstrual cycle. In case of irregular periods, if you do not remember the date of your last menstrual period, it can be difficult to calculate the expected due date without medical help such as an ultrasound. A normal pregnancy lasts about 40 weeks. But in case of multiple pregnancies or induced labor, the expected due date may change or defer. The expected expiration date is only an approximation and not a date set in stone for delivery.

Knowing the above facts, you can start calculating the EDD in the following ways

Based on your last menstrual period:

First, remember the first day of your last menstrual period or PML. In the case of a 28-day cycle, ovulation occurs around 14 days before the LMP and for a 40-day cycle it can probably occur on day 26. Add 40 weeks to this date. A normal healthy pregnancy would last approximately 280 days or 40 weeks or nine months. For example, if your LMP is September 7, 2013, your EDD would be June 14, 2014. Another alternative method to calculate the EDD is to subtract three months from the LMP, add seven days and change the year to the next. For example, if your LMP was on September 7, 2013, go three months ago, that is, on June 7, 2013. Now add seven days, which makes it June 14. Now change the year into one and your EDD will be on June 14, 2014.

Doing an ultrasound:

The EDD calculation based only on LMP may not always be accurate. An ultrasound can be very helpful in calculating the EDD. This is done after the consent of a doctor and in an ultrasound clinic. Ultrasound can also help predict the due date for women with irregular periods who can not keep track of their PML. Prepare for a small discomfort, since it would be a transvaginal ultrasound to verify the gestational age, position and calculation of the EDD. Abdominal ultrasounds during early pregnancy can not help achieve the same parameters. Learn more about ultrasound during pregnancy.

Taking help from the web:

Technology has really made our lives simple. There are websites that have EDD calculators. All you need to do is deliver your LMP and the calculations are done by you with any hassle. In a few seconds, your EDD will flash on your computer screen. But the only problem is that you need to remember your LMP to do it online.

You may also be interested in reading:

Common mistakes that women make during pregnancy. 7 common complaints of pregnancy and how to avoid them Know everything about the epidural.

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Reference: https://www.thehealthsite.com/pregnancy/how-to-calculate-your-expected-due-date-edd/, by Debjani Arora

Tags: Menstrual periods, Guide to pregnancy, Transvaginal ultrasound

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