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Tuesday, September 10, 2013

Which One is the Actual Dates for My Baby's Delivery?

Have you ever encountered any of these situations?
©  Your baby gestational age measured by ultrasound not correlates with gestational age calculated by your last menstrual period?
©  Your expected dates of delivery vary every time you do the ultrasound scan?   

Owh no!! How I’m going to plan my delivery if the dates vary????!!
Calm down and take a deep breath. Read this carefully before you start panicking others…

Usually it is still considered to be normal measurement or correlates to the actual dates/age if the difference;
©  3-5 days if ultrasound scan is performed during 1st trimester
©  14 days if ultrasound scan is performed during 2nd trimester
©  21 days if ultrasound scan is performed during 3rd trimester

Ultrasounds are not completely accurate at estimating the due date of the pregnancy. There are several reasons why this difference happens;
©  Fetuses can bend and stretch so the measurements will not be exactly the same
©  There is always normal biological variation between different fetuses
©  The accuracy of the measurements also depends on the skill of the sonographer and the quality of the equipment

If yours still within the range so no need to worry so much. As long as the other important parameters are also within normal range, your baby will grow up well.

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