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A member asked:
I had an ultrasound and found out i was 4 weeks and 6 days pregnant when did i concieve my baby the ultrasound said 4 weeks and 6 days
3 doctors weighed in across 2 answers
You : You most likely conceived somewhere around january 28th give or take a week. Remember that the dating from an ultrasound is pretty good but can be off by a few days either way. It's a safe bet you conceived your baby anywhere between january 21st and february 3rd. I hope this helps. Congratulations!
Answered 10/3/2016
5.3k views
The margin of: error for ultrasound is roughly +/- 8%(in days) throughout the pregnancy. So at 34 days by ultrasound estimate, it would be about +/- 3 days.
Answered 6/17/2019
166 views
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