5 doctors weighed in:

Ok my wife and I went to sonogram on June 3rd and the doc said she was 8 weeks and 3 days pregnant but she doesn't have regular periods and don't knowwhen last one was when was conception ?

5 doctors weighed in
Dr. Tiffanie Noonan
Pediatrics
1 doctor agrees

In brief: Not a specific date

Conception likely occurred between 4/15 and 4/20.

In brief: Not a specific date

Conception likely occurred between 4/15 and 4/20.
Thank
Dr. Zach Patrick
Emergency Medicine
1 doctor agrees

In brief: A little over 8 week

An US measurement is a very accurate estimate.
It is safe to say it was sometime in the 2 weeks before the 8weeks and 3 days.

In brief: A little over 8 week

An US measurement is a very accurate estimate.
It is safe to say it was sometime in the 2 weeks before the 8weeks and 3 days.
Thank
Dr. Aruna Mani
Internal Medicine - Oncology

In brief: By ultrasound dates

By this point the ultrasound should be pretty accurate because early development is very specific as to what is visible week by week.
You should be able to back-date according to the ultrasound dates given, or 8 weeks and 3 days prior to today give or take 3 days.

In brief: By ultrasound dates

By this point the ultrasound should be pretty accurate because early development is very specific as to what is visible week by week.
You should be able to back-date according to the ultrasound dates given, or 8 weeks and 3 days prior to today give or take 3 days.
Thank
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