Can a baby's due date be a month off when determined by an ultrasound?
28 May Default. My dating scan with this bub at 8 weeks was really inaccurate, it gave me an EDD of 28/8/09 when by my dates I should have been due around 22/8/ Looking at the scan and where the sonographer took the measurements you can see he didn't include the baby's head in the measurements. 28 Jul I had my first scan yesterday at what I thought was 11+4, calculated from my last period. I've been told i'm actually 14+2! Has anyone else experienced this? From reading quite a few posts, most people seem to move a couple of days not nearly 3 weeks. Can it be right/how accurate is the dating scan?. Accuracy of dating ultrasound: I had a dating ultrasound at the beginning of this pregnancy because my cycles were all out of whack. I'd go with your original dating scan. The tech said it should have been done around weeks to be more accurate but they have left it at my LMP ever since.
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From reading quite a few posts, most people seem to move a couple of link not nearly 3 weeks.
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.
LRRSJul 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 continue reading 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!
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 source the day the measurements are just averages.
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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! BsmirchedJul 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 here 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!
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. When he was delivered by section at 37 weeks, he was apparently a typical 35 week read more baby - small and very hairy!
WelshlizzieJul 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!
Your baby is just as likely to arrive 10 days before or 10 days after its E DD. The heart rate of babies is much quicker than adults. My due date was taken from early scan date given, he was born on due date!!! On the other handI know many people who know when they conceived for various reasons.
I don't think it is exact. LRRSJul 30, I should have said a super sperm has made my baby - and me a biologist tut tut! Anyway I found this online From early on in pregnancy, babies grow at different rates, so these numbers are merely averages. Your baby's actual length and weight may vary substantially. Don't worry too much if an ultrasound indicates that your baby is much smaller or larger.
Your practitioner will let you know if it's time to worry about how big your baby is. By full-term, your baby may end up weighing less than 5 pounds or more than 9. Hope this doesn't offend you LRRS, and believe me my husband can be a bit of learn more here know, but seriously this guy is an idiot!
Personally from my 3 pregnancies I reckon you as women need to go with what you believe - we're usually going to know best about our bodies. They usually get stuff wrong from the scans.
My last bump was huge and from the extra growth scans I had they were predicting a 10 pound plus baby, right up until minutes before he was born by section. He was 8 pounds 10! Sorry to hear about your situ LRRS. When I said I think I conceived later than when you are suggesting she said not to worry as these things even out in the end.
However this is absolutely no help in convincing my ex who believes with all his heart this is an exact science. LRRSJul 31, My scan agreed with my dates but when the midwife works it out on some circular thing the weeks vary so that she has put on my Accuracy Of Dating Scan 8 Weeks that i'm a week less than the hospital scan thought!!
LRRS - aren't you very tempted to just say once more that it is his and then just smile sweetly - when the baby is born you can always get a DNA test for proof and to make him feel like a total a e!!
The probe is covered with a disposable protective sheath. Without inductions may women would even go weeks pregnant. Get the 1 app for tracking pregnancy day by day - plus advice, guidance and valuable tools. Is it possible I could really be 22 weeks pregnant? Join Date May Location S.
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