EDD Accuracy

Hi All Which is a much accurate version of predicting EDD? Calculating first day of last menstrual period or ultrasound date? Cos both seem to defer

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Ultrasound as there’s measurements taken. But note it might differs after the subsequent scans.

Super Mum

Ultrasound is much more accurate, especially if your menstruation cycle is not regular

VIP Member

Usually I will follow doctor's advice. But I do feel that my own calculation is more accurate...lol

5y ago

Min was maybe 2weeks later than doctor's.

VIP Member

For me, I trust ultrasound date as my mensural period differs from month to month

I think ultrasound more acc coz they based on the measurement of the bby too.

Yes. I thk follow what doctor advise