Get Virtual Care
For Businesses
About Us
A member asked:
My dd is jan 12th but going by my lmp it says dec 19. the jan 12 is from ultrasound and measuring my belly which should i go by?
A doctor has provided 1 answer
Usually ultrasound: A due date selected by last menstrual period has two weeks of error built into the result. The most accurate ultrasound due date is dating the pregnancy by vaginal ultrasound between 10-12 weeks. After 16-18 weeks, an ultrasound due date has the same two week error as a pregnancy dated by lmp. It sounds like your doctor believes the ultrasound due date is more accurate for you.
Answered 12/23/2014
4.7k views
Thank
Related Questions
A member asked:
If my Abdomen Ultrasound report show A calcified granuloma is seen in segment V of right lobe of liver measuring 10mm Do I need to worry or is it normal?
A doctor has provided 1 answer
A member asked:
Ultrasound on 4/12/13, i was 9w4d doc say i conceived on 2/1/13. But 2/1/13 was the 4th day of lmp(21days cycle) could ultrasound be off a few days?
2 doctors weighed in across 2 answers
A member asked:
Why would u/s tech say i was 17 weeks & 4 days based on my lmp, but then afterward say i was 18 weeks once she started the ultrasound?
A doctor has provided 1 answer
A member asked:
Do ultrasounds date from conception or lmp? I.E. If they say baby measures 12 weeks, is that from conception or should that date back to your lmp?
A doctor has provided 1 answer
People also searched for:
I'm 5 weeks 5 days according to my last LMP ,I have had an altrasound for placement purposes but the doctor cant find anything ,plus I'm experiencing pain in my abdomen what should I do now?
Should go by ultrasound due date of March 20th instead of lmp date of March 7th? Hcg 105 July 13th but no sac. Sac finally July 20th measuring 5 weeks
Do ultrasounds add two preconception weeks when measuring baby? If baby measures 12 w is this supposed to date to LMP or conception?
What is more accurate? Fundal height measurement or measuring the baby through an ultrasound? I'll be 24w tomorrow and haven't had my belly measured
Due date is july 5th, have regular 30 day cycles. All ultrasounds are measuring perfectly with lmp. When was conception?
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
