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Do ultrasounds date from conception or do they always add an extra two weeks? If i had an ultrasound and measured 12 1/2 weeks does that mean i got pregnant 12 1/2 weeks ago? does anyone know the answer to this?

Answer Question

Asked by Anonymous at 5:46 PM on Apr. 8, 2009 in Pregnancy

Answers (4)
  • yes they count from concerption so u concevied 12 1/2 weeks ago

    Answer by mom-to-be21 at 5:47 PM on Apr. 8, 2009

  • no they meausre the growth of the baby it could be off by 2 weeks .

    Answer by Mrs.Owen86 at 5:48 PM on Apr. 8, 2009

  • The date of conception is never known. Due dates are measured from the date of your last there are approx 2 weeks figured into a due date where you are not actually pregnant. However when you have an ultrasound done and the baby is growing at a rate more/less than 7 days of your LMP your due date will change to wherever the baby is at in the growth pattern.

    Answer by Ash9724 at 5:52 PM on Apr. 8, 2009

  • so then i concieved 10 1/2 weeks ago more or less not 12 1/2 weeks ago, right?

    Answer by Anonymous at 6:05 PM on Apr. 8, 2009

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