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Accuracy at medical office
how accurate are ultrasounds at 7 wks pregnant? could it be 2 and a half to 3 weeks off?
If you have a look at the app the difference in developement from 4wks vs 7wks or 7wks vs 10wks is pretty big. They are changing rapidly in the first trimester so developmentally i would say they are pretty accurate that early on.
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