Top answers from doctors based on your search:
How to calculate conception date from ultrasound
A 24-year-old female asked:
Dr. Paul Slawekanswered
Radiology 56 years experience
Measurements: US uses measurements of the gestational sac and then the growing fetus to date a pregnancy. The appearance of the heart beat. Usually measurements are... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4k viewsAnswered >2 years ago
A 24-year-old female asked:
Dr. Gurmukh Singhanswered
Pathology 51 years experience
It is not feasible to narrow down as to which episode of sex resulted in conception. What did you doctor mean by conception date? Was it the day egg w... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Answered Dec 14, 2022
A 41-year-old member asked:
Dr. Michael Gaboranswered
Diagnostic Radiology 35 years experience
The margin: of error for ultrasound pregnancy dating is about 8%.
Created for people with ongoing healthcare needs but benefits everyone.
3.5k viewsReviewed >2 years ago
A 19-year-old female asked:
How accurate is an ultrasound at 15 weeks determining possible conception date , due date is nov 19?
Dr. Raj Syalanswered
Obstetrics and Gynecology 35 years experience
7-10 days: Usg can predict conception with a accuracy of 7-10 days at this gestation.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 28-year-old female asked:
Dr. Robert Killiananswered
General Practice 30 years experience
Five Days: The standard answer is that sperm live up to five days after emission. So the closest they can come to is a five day window around conception.
Created for people with ongoing healthcare needs but benefits everyone.
4.3k viewsAnswered >2 years ago
A 32-year-old male asked:
Dr. Miguel Canoanswered
Obstetrics and Gynecology 32 years experience
You have a Problem: Check your dates... If you really had an ultrasound 5/23 and you were 26 weeks & 1day...Your due date would have been 8/28/12 & you'd be 49 weeks & 4 ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.5k viewsAnswered >2 years ago
A 33-year-old female asked:
Dr. David Dinhoferanswered
Radiology 43 years experience
Depends: The accuracy of the delivery date is variable depending on a number of factors. Usually the earlier scan is most accurate due to differences in gesta... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4k viewsAnswered >2 years ago
A 32-year-old male asked:
Dr. Gayane Ambartsumyananswered
Fertility Medicine 22 years experience
Jan 27: You are approximately 27 wks and 5 days and due date jan 27th. Please talk to your doctor for more accurate details as she knows your history the bes... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.5k viewsAnswered >2 years ago
A 22-year-old female asked:
Dr. Larry Grissomanswered
Radiology 45 years experience
Within about 10 days: The ultrasound dating is calculated from the first day of bleeding from your last menstrual period ± 5 days.
Created for people with ongoing healthcare needs but benefits everyone.
5k viewsReviewed >2 years ago
A 32-year-old female asked:
Dr. Carri Warshakanswered
Specializes in Obstetrics & Gynecology - Maternal Fetal Medicine
1/7/2014: Is the best estimation of the date of conception. The 8 week ultrasound establishes your due date +/- 5 days. Therefore it could be few days before ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.2k viewsReviewed >2 years ago
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