Until we have our official dating scan, should we go by LMP dates or can we adjust them to what our early scan has told us? (Hope that makes sense)
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LMP until dating scan. Early scans aren’t very accurate. Ive had two early scans and dates were about a week apart from each other, and both significantly earlier than LMP date. First early scan was with EPU on NHS which put me back nearly two weeks but they said to continue using LMP as they’ll change again at dating scan. X

Early scans can vary a lot before 11 weeks, so it’s best to go by LMP until the dating scan.

With my first, my LMP due date was the 13th, private scan at 10weeks said 14th, nhs dating scan said 10th. Baby was born on the 17th 🤷♀️
Officially they will use the date calculated at your dating scan.

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