Added: Edwin Ashbrook - Date: 23.12.2021 21:01 - Views: 22384 - Clicks: 6023
Despite the fact that sonographers are experts in their field, estimated due dates EDD calculated from pregnancy scans can be incorrect, as Ollysmum76 discovered. Original date given was 18 December but at the scan it was moved to 31 Dec. Unless you have an early pregnancy scan most of you will be given your estimated due date at the week scan.
Of course you have probably already used an online due date calculator. Weird huh?
Pregnancy normally lasts from 37 weeks to 42 weeks from the first day of your last period, explains NHS Choices. But this will only give you a rough idea. This is especially true if you have an irregular cycle or have been on the Pill for example. Experts say that the scan date can sometimes come out as less pregnant than suggested by your LMP. This was the case for HowieMumma.
But then again with my first baby I was spot on with dates, he always measured big and he was a week overdue… these babies like to be tricky! But Nigel also says that the estimated and that is all it is date is normally accurate plus or minus about a week. The healthcare professionals will stick to this date as far as possible because it is then used as the baseline for growth throughout pregnancy.
I have scans every few weeks so it will probably keep on changing. These can be carried out from week 5 or 6 of pregnancy, which is a notoriously tricky time to be accurate on dates. AdamsMum also found the date that she was given at an early dating scan was changed when she got to her dating scan. Expert Jan Steward, who is director of Ultrasound Direct and Babybond, agrees that early scans carry a much greater risk of inaccuracy.
We always recommend mums get a definitive dating scan closer to 12 weeks as this will be much more accurate. Just half a millimetre at such an early stage can change your date by a week.
Your week scan will be far more accurate. The sonographer then said that I was only about 4.
Then at the week scan I got an EDD of 15 march, so that early scan was completely out. And yet, bizarrely, after your dating scan at 12 weeks, your due date can get less accurate the more pregnant you get. At around 12 weeks you can get more accurate measurements. By talking to the health care professionals you should get a clearer picture as to what is happening. Home Pregnancy Pregnancy Health Can your pregnancy scan give the wrong due date? Comments Please read our Chat guidelines.
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