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I got a dating scan which put me at 12 weeks 5 days today. For those who dont get dating scans, they would go off the NT scan dates yes?
Posted Thursday 06 January Cramps in early pregnancy Implantation bleeding Pregnancy recipes hCG levels chart. I didnt get dating scan or NT scan, i just had a normal ultrasound at 12 wks and with all my other ultrasound the dates have only been a day apart! I have no idea which is more accurate but the scans are only an estimate. I had a dating scan which put me at 12 weeks. I then had a scan at 19 weeks which put me 20 weeks and 2 days.
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I have had another scan which going by my dating scan i should of been 25 weeks 5 days and it put me at 28 weeks. The scan dates are only a guide and it is considered that you are full term 2 weeks either side of the dates they give you. Plumbum New Zealand Total posts: Dating scans are most accurate between 6 and 8 weeks, after that genetics plays a factor in the size of the baby.
This was told to me by several medical professionals. I two dating scans with DD2, the first one said 5 weeks 3 days and cos there was no heartbeat and the embryo was just so small and hard to measure we went back two weeks later and the second one dating us at 7 weeks 6 days not 7 weeks 3 days. DD2 was born 3 days early, so I reckon that scan was pretty accurate. Anyways, the point of what I'm saying is neither of your scan after 12 weeks are going to be as accurate as a early one.
how accurate is a dating scan? - Pregnancy: Tips, Questions and Information - Essential Baby
Perhaps go with the later date 12 weeks 5 days and then if bubs is late you will not feel you have been as pregnant for as long IYKWIM. Hi, I'd go with the dating scan date So neither date might be right! NSW, Australia Total posts: Have you gone back through your dates and double checked? I'm sure you have but that is all I keep doing. I hope someone can give you a more comprehensive answer but wanted to add my voice to your enquiry.
LRRS , Jul 28, Are you going to get a second opinion? My mum and step dad conceived my brother accidentally on their first night together and they've been happy together for 17 years. I hope it works out for you! Am I right in thinking I just move the old due date forward 4 days?! Sorry if that sounds thick!!
The first date was based on LMP long cycle!
Can your pregnancy scan give the wrong due date?
The offical answer is that they are accurate to 4 days. On the other handI know many people who know when they conceived for various reasons. At the end of the day the measurements are just averages. Babies end up all sorts of sizes so it is likely that they will grow at different rates. I know that I conceived on one of 2 occasions in one week. I haven't worked out if those fit with my dates, maybe I will do that!
I know my friend was measuring a couple of weeks ahead at 12 weeks, but is back to what she should be now, at 20 weeks. As others have said, there can be huge variation! Bsmirched , Jul 29, Hi new to writing on here but have been reading lots of useful advice from you all.
Dating scans work on the assumption that the length of all babies in the first 14ish weeks progress at exactly the same rate. Which seems a bit odd to me considering that length of cycle, birthweight and everything about the mother vary such a lot. A friend of mine had her dates pushed back by about 3 weeks, only to have her baby 5 weeks 'early' but with no more complications than you would expect for a 2 week early baby, she is firmly convinced she was right all along!
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Sorry to hear it can put some people in such difficult situations. Guess it varies place to place, or my midwife doesn't trust the sonographer! She'd already written Dec 6 on my file the scan results say Dec 2 but they have left Dec 6 as the date for my MAT B1 form, lets face it, won't make any difference to when the little person decides to arrive! When I had my son, I was moved forwards by almost two weeks and despite what I said they refused to change it.
how accurate is a dating scan?
When he was delivered by section at 37 weeks, he was apparently a typical 35 week old baby - small and very hairy! Welshlizzie , Jul 29, I have questioned this also. I know exactly when i conceived can't be any other time unless i'm a medical marvel! I went into meltdown as this has implications for me also but my hubby assures me it just can't be when they said it is!