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  1. September 21st, 2013, 05:19 PM #1
    3SSS
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    Question about dates and nub theory

    If I got my nub pic at 11w3d (weeks based on an earlier dating ultrasound as well as the day I know I conceived), but I was measuring 12w2d, would my scan have the decreased accuracy that an 11 week scan has, or would it be more reliable than that because of measuring ahead?
    Thanks!
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  2. September 21st, 2013, 05:59 PM #2
    katewantsagirl
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    The nub goes by gestational age so youd have a 12.2week nub not an 11day one


    3 1

    due Jan 2nd 2014!!! Yay my GIRL
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  3. September 22nd, 2013, 05:34 AM #3
    pinkdreamer
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    The nub goes by scan age, not LMP dates and so it would be more accurate than a 11 week scan. The best time for nub guessing is around 13-14 weeks though, if you get a good shot at this time it can be about 97% accurate x
    Two gorgeous and two angel

    Our precious has arrived 20th February 2014! Our dreams have come true!

    Thank you Genderdreaming and Atomic! x
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