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A 21-year-old female asked:

Does your uterus swell at 4 weeks?

1 doctor answer2 doctors weighed in
Dr. Marlis Gonzalez fernandez
Physical Medicine and Rehabilitation 13 years experience
No : At 4 weeks pregnancy the embryo is about the size of a pin head.

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A 34-year-old member asked:

My ultrasound at 4 weeks showed that there is nothing in my uterus. How can this be?

1 doctor answer1 doctor weighed in
Dr. Michael Gabor
Diagnostic Radiology 33 years experience
That is: not necessarily abnormal. The gestational sac sometimes shows up on ultrasound at 4 weeks, but may not appear until near the end of week 5.

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Last updated Mar 29, 2013

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