Embryo size seems abnormally large for 6 weeks?
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RickHarcus posted:
Hi,

I'm looking for information as to why our embryo measures large, very large, compared to what many internet resources say is normal. We live in China, and while we had an ultrasound there was very little to no information other than "it's normal" from the doctor, so I'm turning to the net.

Situation:
My wife's last period ended on about March 25th (our Ultrasound was from May 5th), this should mean she's 6 weeks pregnant (4 weeks embryo age), right?

The embryo measured 2.8x2.0cm, (1.1 x 0.8 inches), but I read that it should be closer to 0.4cm or 1/8th inch..... I'm a little confused, and not really sure how there could be such a large difference, any advice would be greatly appreciated.

Note: She has also been slightly bleeding, which is why we went to the hospital to get an ultrasound that night. It has been light but consistent for the last week - only a few drops a day, but clearly visible.

Thanks for any information on this!
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tlkittycat1968 responded:
It may have experienced a growth spurt right before the ultrasound. DD measured a week larger on one of my ultrasounds but was normal size/weight when born.