Get Virtual Care
For Businesses
About Us
A member asked:
Edd was january 2 going by lmp. then changed to january 12 by early u/s. which should i trust? two early u/s 13 days apart first one 8w1d then 9w5d
A doctor has provided 1 answer
The ultrasound: An ultrasound at 8 weeks and 1 day would be accurate to within about 7 days or less. Since the due date by the ultrasound is of 10 days from that based on your LMP, the best estimate would be the one from the first ultrasound, the earlier scan is best. Once a date is decided it is not correct to change it. A later ultrasound would be less accurate and would not be a reason to change the date.
Answered 8/20/2014
3.8k views
Thank
Related Questions
A member asked:
If my early 6 week ultrasound puts my edd four days after my edd from lmp, which one should I go by, my ob/gyn says ultrasound what do you think?
A doctor has provided 1 answer
A member asked:
Is u/s dating in first trimester more accurate that going by LMP? EDD changed & going by ultrasound now...
A doctor has provided 1 answer
A member asked:
So being i got my first u/s at 9wks 6dys, edd of 01/22/13; i count back 40wks from that to get an estimate of my lmp? Right?! or is 9wks u/s too late?
A doctor has provided 1 answer
A member asked:
Edd is 11/12 based on early ultrasounds & lmp. Possible i conceived on 2/7/13? How long is sperm viable in a woman?
A doctor has provided 1 answer
A member asked:
My first scan my due date i got 8th feb 2014 and it hasn't changed since. My LMP is 6th may 2013. Can my due date be off by a week or few days?
A doctor has provided 1 answer
People also searched for:
I had sex with two guys 10 days apart, one on 11 Feb, and one on 20 Feb. My due date was 12 Nov from ultrasound and 13 Nov from LMP.. Im not sure who the dad is?
My lmp was march 24th and had a due date of December 29th but it was changed by two weeks to January 13th. is this normal.
My lmp was march 24th with a due date of December 30 but got changed to January 13 after first sonogram but my GA on sonogram dates back April 15th.
I had my period on April 9th. My periods are fairly irregular by a week or so. My ultrasounds measure two weeks behind my LMP due date. I've had one done at 5WKS (too small to tell), 6WKS5DYS, & 19WKS. They all gave me the same due date by except 2 days.
Don't need to pinpoint conception day, but two first trim ultrasound give same due date we have no lmp to go off, how accurate is age of our baby?
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
