HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Are first trimester ultrasounds ever exact in dating?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Early Ultrasounds: Actually they are thought to be the most accurate.

Dr Milan agreed

Answered 2/21/2014

4.4k views

Thank

Related Questions

A member asked:

Are first trimester ultrasounds better at estimating conception or lmp?

A doctor has provided 1 answer

A member asked:

Can you figure out conception date from 2 first trimester ultrasounds??

A doctor has provided 1 answer

A member asked:

My first ultrasound was in my late 2nd trimester. How accurate is due date?

A doctor has provided 1 answer

A member asked:

Four first trimester ultrasounds done at 7 8 10 12 week all come. Up with same conception date. What's it mean??

A doctor has provided 1 answer

A member asked:

I am wondering how accurate are first trimester ultrasounds and what is the longest sperm can live inside a woman?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

I wanted to know how accurate early ultrasounds (first trimester) are in conception dating? If i was 5 weeks4days 9/23/13 putting conception 25-28 of aug could I have still concieved 7/28/13
How accurate are abdominal ultrasounds in first trimester for dating how far along you are?
What does it mean when LMP dating by ultrasound in first trimester assumes a 28 day cycle?
Is u/s dating in first trimester more accurate that going by LMP? EDD changed & going by ultrasound now...
Do first trimester dating scans change lmp to match ovulation day and make cycle 28 days?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
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 question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
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.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.