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  1. #1
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    Default HCG accuracy for dating

    I had blood test done to confirm pregnancy and Dr seems to think my dates are different to my calculations. How accurate are HCG levels at determining weeks roughly? There is a difference of 4 weeks between LMP based dates and HCG dates from Dr. I have my dating scan referral but no idea when to go now since the difference.
    Can anyone help me out here?

    And no I don't know what the HCG levels were, I should have asked but I completely forgot.

  2. #2
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    Achievements:Topaz Star - 500 postsAmber Star - 2,000 posts
    Hcg levels can vary hugely, i dont think it can used that accurately, more of a guideline. Best way to get your EDD is to have a dating scan. Congrats 😀

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    Balfour  (08-12-2015)

  4. #3
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    Default HCG accuracy for dating

    It's not accurate at all! If you have regular cycles of about 28 days I would go with 40 weeks from the first day of your LMP until you have your dating scan and then go with that date which is pretty accurate.

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    Balfour  (08-12-2015)

  6. #4
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    Thanks. That's what I thought but when you're left alone with information for long enough you start to question things.

  7. #5
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    For the record, I was correct. Only off by a couple of days.

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    Once Upon a Time  (09-12-2015)

  9. #6
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    Quote Originally Posted by Balfour View Post
    For the record, I was correct. Only off by a couple of days.
    Awesome! I hope your scan went well

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    Balfour  (09-12-2015)


 

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