A member asked:

I am 4wks 2dys pregnant.i had an ultrasound & it says my gsd is 17mm with no fetal echo seen yet.is this normal?

4 doctors weighed in across 2 answers

Early pregnancy: At 4 weeks pregnant, it is normal to see only a gestational sac on the ultrasound and nothing else. In the next two weeks you will see the development of a yolk sac and then a fetal pole. Your ultrasound findings should correspond with your blood HCG levels - check with your doctor to make sure they do. Also call your doctor if you have any bleeding or pain.

Answered 4/25/2016

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Dr. Anthony Filly answered

Specializes in Radiology

Probably not: 4 weeks 2 days pregnant essentially means that you just missed a period 2 days ago so generally on ultrasound you won't see anything. If there is truly a 17 mm sac with nothing in it at all by a vaginal scan, it is unfortunately not a good sign for a viable pregnancy. The whole story doesn't make sense, so i'd recommend that they continue to follow your lab work and ultrasound to see what happens.

Answered 2/14/2013

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How accurate is a ultra sound for the fetal age in early pregnancy?

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