2 doctors weighed in:

What's the error margin with conception dates with an transvaginal ultrasound done at 9 weeks of pregnancy?

2 doctors weighed in
Dr. Jane Van Dis
Obstetrics & Gynecology
1 doctor agrees

In brief: 5 days

Typically it's plus or minus 5 days.

In brief: 5 days

Typically it's plus or minus 5 days.
Dr. Jane Van Dis
Dr. Jane Van Dis
Thank
Get help from a real doctor now
Dr. Adam Levy
Board Certified, Obstetrics & Gynecology
33 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors