How is a dating scan calculated


how accurate is a dating scan?



The pregnancy dating scan

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If you think you have a medical emergency, call your doctor or emergency services immediately. User Name Remember Me? Feb 1st, So I was just i are these scans datiny by the amount of weeks since conception?? So if I go back 6 weeks it would mean the baby was concieved Dec 20th for instance?? I'm just a bit paranoid about the baby being the size it should be, I know I conceived between Dec 18th and 31st coz that was wen OH was on leave gotta go back next week to be calculatfd to check how is a dating scan calculated still growing x.

Docs and baggage reclaim dating advice are never clear about this. Truth is the scan dating will predict the due date most accurately but NOT because it is actually accurate. I think some pregnancies can take longer to get going then others in the early stages and its also hard calcualted get a good measurement when the ls pole is so tiny. My dating by the ultrasound was wrong - id doubt about it.

This is pretty common and it doesn't mean that a miscarriage will occur although there is always the chance of capculated with any pregnancy obviously. They measure the size of the baby and that gives you your due date. At 6 weeks they can be upto 5 days out. The scan you have at 12 weeks is the most accurate. I went calculatde 5 days from my scan i had at 6 weeks to the scan i had at 12 weeks.

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6 week and 1 day dating scan


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