Accuracy 1st trimester ultrasound dating
I suppose what I'm trying to say is that baby is healthy and happy and will come when s/he is ready.
That is the only one they stick with here in the UK so must be the most accurate. When it really should have showed something (thought I was 7 2 but they've said less than 6!
That is the only one they stick with here in the UK so must be the most accurate. All of the measurements taken fit into the law of averages.
I suppose what I'm trying to say is that baby is healthy and happy and will come when s/he is ready. Actually all babies grow at different rates at each stage of development.
While crl can be used for dating until 12 weeks, it is most accurate during 6-8 weeks when the accepted error is only about 3 days from actual date.
I finally had my first scan today after slow rising (but then doubling) hcg results.
Talk to your OB if you have more specific questions. While 11/25 could be the conception date, it's highly unlikely. Us dating assumes the average cycle, so a 7 week pregnancy would indicate conception about 5 weeks ago. Read more Early ultrasounds (before 8 weeks) are accurate within about 3 days. The NIPP is test they can do on the mothers blood as early as 8 weeks into a pregnancy. Read more If a conception date is estimated from an early ultrasound scan (at 8-11 weeks gestation) the accuracy of the estimate doesn't change even if the cycle lengths are different.