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Ultrasound

If I was given a due date based off of ultrasound and not my LMP, can you determine when conception may have taken place? From the ultrasound I measured 12w4d so does this mean I concieved 12w4d ago? or 10w 4d ago?

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Anonymous

Asked by Anonymous at 8:53 AM on Apr. 6, 2009 in Pregnancy

Answers (3)
  • 10w, 4d ago, or thereabouts...
    kara_g.

    Answer by kara_g. at 9:33 AM on Apr. 6, 2009

  • You would have conceived 10 wk and 4 days ago but the measurement is based on your period. You ovulate after your period 7 to 14 days so if you go back to day 1 then thats how they do the due date.
    brailynsmama08

    Answer by brailynsmama08 at 11:21 AM on Apr. 6, 2009

  • day 1 isnt when i had my period though. i measured a little farther along than my lmp due date. thats whats so confusing.
    Anonymous

    Answer by Anonymous at 12:01 PM on Apr. 6, 2009

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