First Ultrasound at 6 weeks 3 days
Ultrasound Examination | Establishing the Gestational Age of the Pregnancy | Ultrasound Care
Hi guys Hoping some1 can help put my mind at rest!!! how far out can dating scans be?had the first scan on the 23rd june: my EDD by scan is 7th jan CRL 52MM my EDD by dates is Il explain why im worried that it it could be wrong . could it be wrong could i be nearly 3 weeks more then i am?. Even dating scans can be inaccurate for the due date, but they are never as inaccurate as using the menstrual period. shutterstock_ScanRed jpg. For instance a dating scan done at 6 weeks could get the date wrong five days either way. A scan at 12 weeks could get the date wrong seven days either way and. 13 Oct And in the meantime, this is very stressful, wish we would not scan until weeks to be really certain, science vs nature we can't be sure, only time can tell, but my last period was on 9th October so my due date is 17th July but the ultrasound date is 8th august that is 3 weeks after so i am worried.
I had a dating scan in august and was dated 5 days further on than I thought.
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I did an ovulation test so know exactly when I ovulated although can these be wrong? I did get a positive pregnancy test very very faint line at 10 days post ovulation test. And 4 days after supposed ovulation I had a blocked nose which is always my early sign of pregnancy. I guess my question is which is more likely to be inaccurate, the dating scan or ovulation test?
My due date is 15th feb Positive ovulation test 30th may LMP was 13th may This does not matter in the grand scheme of things but if my pregnancy is calculated further on than it is I might end up been induced due to dates which I don't want. Dating scans are inaccurate. Trust your own body, and if you go overdue, fight your corner.
Don't let them induce you just because you're too overdue by the dating scan dates.
I definitely think dating scans can be wrong. With my first I knew exactly when he'd been conceived you click forget one shag in four months!
My waters broke 4 days after supposed due date, though was still induced due to nothing happening fast enough. Pregnant again and will take scan due date with pinch of salt. Thanks for your replies. I do think my dates are right and the dating scan wrong.
Can a baby's due date be a month off when determined by an ultrasound?
Hi, I'm in exactly the same position as you - dated 5 days ahead but know exactly when I ov'd. I'm due on 9th Feb according to the scan, but am looking on the positive side as it means I can start maternity leave 5 days earlier. I went 9 days 'over' with my first, but I think the dates were wrong then too, so i understand where you're coming from. In my area, if you go over your due date by a long way I think 42 weeks you are offered daily scans to check all is well - I'd do that rather than have another induction any day!
I agree with GreatJoan. Click heard of IVFers arguing with drs who are telling them that conception happened at some time other than the 24hrs in which they absolutely know that sperm and egg met!
I'm glad others have had the same experience or heard about people who have. When I had my dating scan and calculated it i realised it didn't make sense but its difficult because the date they give u is what they go by and u dont want to say its wrong. I will be doing everything I can to avoid induction this time round. The thing is, implantation can take variable amounts of time after ovulation, so even with IVF there could well be some source between where you think you are and where you are on the scan.
Not to say scan is necessarily right, but within a margin of a few days I'm not sure it's possible to say that they are definitely wrong and you are definitely right.
Usually before 10 weeks they're accurate to within 5 days most of the time.
Embryos follow a pretty set path before they are fully formed and start the business of "just" growing. The earlier they are so long as there's something to see.!
After the baby has fully formed, bets are off. All my babies have measured within 3 days of my charted ovulation dates up to 10 weeks, in most cases spot on or 1 day out.
Dating and viability What is a dating scan? MFM mums share their stories plus expert sonographers explain why it happens and what to do if you're told your due dates are wrong. However, the accuracy of the ultrasound examination is always dependent on the skill of the sonographer and the quality of the equipment. She didn't miss taking it nor was she ill or anything.
And I've had at least pre 9 weeks scans per baby due to the joys of spotting and bleeding. Yet they all measure days ahead by 12 weeks! Most dating scans seem to be done post 10 weeks on the NHS which seems odd as it's less accurate then. However for them to say you conceived a week before you actually did makes no sense in most cases; especially those with IVF involved!
That's interesting about earlier scans been more accurate in my last pregnancy I had an early scan then had a dating scan and they pushed me 3 days further forward at the second scan. I feel better knowing this now as it makes sense that babies grow at different rates. Hi ladies, Same here. At my 12 week scan they moved the conception date back by 7 days. I'm going to ask them to have another look at my 20 wk scan in 2 weeks. The new conception date they have given me is 5 days into a work trip in Italy where I certainly didn't conceive!
Babies are ready when they're ready - try not to worry easier said than done. Forum Jump Today's Posts Search. How long is your menstrual cycle?
Also, if the date they have given me is correct which is impossible it would meant that I got a very clear line positive result on a home pregnancy testing kit at 3 weeks I thought I was 4 Anyway, I'm sure he or she will born whenever they please but as I'm so sure the date is wrong it's worth mentioning, right? A scan is only as accurate as the person doing it and the equipment they use. We're talking millimetres here so if you had the scan done ten minutes later by someone else you'd click get a slightly different result.
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