Second Trimester of Pregnancy Forum - Sonograms Fetal Age Vs. Gestational Age

Pregnancy Forum > Second Trimester of Pregnancy Forum > Sonograms Fetal Age Vs. Gestational Age

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Q: Sonograms Fetal Age Vs. Gestational Age

asked by: josie265 on August 7th, 2007

New User

Okay so here's a question....when you go and get your sonogram...and the tech tells you that you are 18 weeks and 4 days pregnant...is that 18 weeks 4 days gestational age and 16 weeks and 4 days fetal age due to the extra two weeks counted for the 2 weeks pre-ovulation...or is it 20 weeks 4 days gestational age, 18 weeks and 4 days fetal? I know this is confusing, I just didn't know if they were measuring the baby's development,..and how accurate ultrasounds are when checking for fetal age and so on...can anyone help me with this? please...thanks

Replies(1)

cln1812

replied on August 12th, 2007

Active User, very eHealthy

I'm pretty sure when the tech tells you the measurements it's by gestational age and not fetal age. Very few sources go by fetal age, I think, mostly it's gestational age. I was told the baby measured 20 weeks 4 days at my big ultrasound by the tech, done when I was 20 weeks 5 days gestational age.

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