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Well, I would never secondguess your experience but my understanding is that it depends on when the ultrasound was done. If it's early on in pregnancy then it's considered extremely accurate because babies are on a strict timeline of development, and they're not going off size per se but off of the presence or absence of certain markers that are only around for a particular stage of development.
I certainly believe there could be exceptions to this but for most people, it's more likely that they just oed at a different time than when they thought they did, KWIM??
Later in pregnancy then the differences start to creep in because it's no longer about development, it's about size and weight and so genetic variation begins to matter more and more.
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nope actually the early ones are LESS likely to be accurate because the baby is so small and there's more room for error - even mismeasuring by a mm could result in a very different date being given (seeing as this is done by a human being clicking where the body starts/ends), including if baby isn't completely side on which is hard to judge before they have arms. The dating scans are done when it's considered to be *most* accurate - baby is still growing at a steady and fairly consistent rate yet is big enough for user error on the measurements to matter less, but even that can be up to a week out and by that point you do also get a small bit of variation in baby size for gestation too. All of this assumes that the technology is also perfectly accurate. They say a good tech can get the date right to within a couple of days if done around the 12 week mark.
and after the 13 week mark genetics and baby health comes more into play and baby growth rates vary so that's why they don't change your dates after that point if you have a scan
the only way to know for sure when you ovulate(d) is to have daily ultrasounds of the follicle around the time of ovulation to see when it releases. Everything else isn't actually very accurate
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Ok, well, sorry that I was in a hurry, I am not referring to the VERY early ultrasounds where the baby is, like, invisible.
Studies at 12-13 weeks gestation (meaning, the "early" ultrasounds, because most women have one at 12-13 weeks and then the "late" ultrasound a 20 weeks) are considered extremely accurate. 97-100% accurate in studies. So I stand by what I said previously, the majority of cases the early ultrasounds are far more accurate than someone who just thinks they know when they ovulated, because even people with a high level of expertise can be wrong on that. Again, I'm not saying that was YOUR experience, because there are certainly techs out there who make mistakes and have bad days sometimes. But it was MY experience twice over where I was pretty darn sure I knew when I had gotten pg, and then surprised at the ultrasound and thought back and was like, oh yeah, we did BD then. And sure enough, both babies came in the time frame that was predicted by the ultrasound and not my dates.
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I got an early ultrasound done and it was correct down to the day when I got my +opk. Scan wasat 10 weeks.
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Hi Rainbow Flower. Just updating as I know people were waiting for more clomid sway results to come in. I had a baby girl last week after clomid + LE and other stuff. My sway is in my sig - hope it helps. Thanks again for compiling these wonderful spread sheets - they really helped me in my "season of waiting" and am sure they will help many people.
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Congrats Hoping! I think there have been a few clomid opposites lately too, I hope there are enough soon so spreadsheet can be updated again. Thanks for posting!
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I'm interested in the new stats too! I'll keep stalking this thread for updates when you get time to do it. I am sure it's a big task to get it all in with little ones at home.
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if you open the spreadsheet the stats at the top (and on the diets tab) are up to date at the moment
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Rainbow flower- you are a saint! Thank you so much for updating this!
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The soy has good results! Is that when given to dh or taken by dw?
