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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Should Be The Normal Size Of Fetus During 5th Week Of Pregnancy?

Hi
I am 30, 175 lbs and 5'7. This is my 3rd pregnancy. Just curious, I had an ultrasound done today and my fetus measured 3mm. Doctor said it was too small. I am 5 weeks since my last period. However, online says it is normal. Also, my levels are 670 for 5 weeks. They said too low and internet said normal. What is your opinion?
Mon, 20 Jul 2015
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General & Family Physician,  's  Response
Do not concern .
As you said that your fetus measured 3 mm at 5 weeks pregnancy , it is the normal at this stage.
Remember that transabdominal ultrasound cannot reliably diagnose fetus size at pregnancy less than 6 weeks.
So it would not be a major issue to worry.

All the best for your future baby. Take care.
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What Should Be The Normal Size Of Fetus During 5th Week Of Pregnancy?

Do not concern . As you said that your fetus measured 3 mm at 5 weeks pregnancy , it is the normal at this stage. Remember that transabdominal ultrasound cannot reliably diagnose fetus size at pregnancy less than 6 weeks. So it would not be a major issue to worry. All the best for your future baby. Take care.