Get Virtual Care
For Businesses
About Us
A member asked:
Do ultrasounds measure from gestational age or does it measure from the day of conception? i have an extremely irregular period..
A doctor has provided 1 answer
Ultrasound: measurements estimate the gestational age of the fetus. Gestational age is in relation to your last menstrual period. For example, a fetus measuring 8 weeks gestation on ultrasound would have been conceived 6 weeks prior to the ultrasound.A patient with 28 day cycles would have started her last menstrual period 8 weeks prior to the scan. Keep in mind that these measurements are estimates.
Answered 9/11/2015
2.3k views
Thank
Related Questions
A member asked:
Lmp was 2/3. 95% sure conception date was 2/23. Ultrasound on 4/4 showed 6 weeks 1 day. 140bpm. I have irregular periods. How far along am i & due date?
A doctor has provided 1 answer
A member asked:
Is conception usually two weeks after gestational age from ultrasound?
A doctor has provided 1 answer
A member asked:
Why does my ultrasound match my (estimated) date of conception rather than my gestational age?
A doctor has provided 1 answer
A member asked:
How accurate are transvaginal ultrasounds in dating conception date if have irregular periods?
10 doctors weighed in across 4 answers
A member asked:
Why are my ultrasounds always a week ahead of my period gestational age?
A doctor has provided 1 answer
People also searched for:
Last period feb. 13th. Took Plan B feb. 17th. March 9th sexual intercourse. April 19th ultra sound done with gestation of 8 weeks. Conception day?
Do ultrasound measure from conception age or gestation age?
Do ultrasound measure from gestation age or fetal age? Im 23w 5d from my lmp 6/8/22 ultrasound also adds up to my last period. My due date is 3/21/23?
Ultrasound on 4/8/13, gestation age 9weeks and 4days on thay day. Rn said i conceived 2/1/13, but i was on period that day. Could ultrasound be wrong?
Gestational age dates back to around my conception date. March 24th last period 14 days after would be April 7th. My GA dates back to the 8th. Why?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
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.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
