U.S. doctors online nowAsk doctors free
A 32-year-old female asked:

Can a 12 week fetus be confused with an 11 or 13 week old fetus? (crl 62mm)

1 doctor answer1 doctor weighed in
Dr. Ron Eaker
Specializes in Obstetrics and Gynecology
Yes: The accuracy of a sonogram at this early stage is usually plus or minus a week so depending on the quality of the quality of the sonogram dates can very about 1 week or another.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated Mar 26, 2013


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.