Can a dating ultrasound be wrong


23-Jan-2016 06:52

can a dating ultrasound be wrong-30

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But early ultrasound due dates have a margin of error of roughly 1.2 weeks, so doctors will usually keep the original due date (the one generated by the date of your last menstrual period) if the ultrasound due date is within that margin of error.

If you can't remember your last menstrual period date or if you have consistently irregular cycles, the doctor can use an early ultrasound to give you a fairly reliable due date.

Naturally, one of the most common questions asked about ultrasound accuracy is: Just how accurate are the due dates that are predicted by an ultrasound?

Evidence suggests that, in the first 20 weeks of pregnancy, the first ultrasound may be the most accurate tool for predicting when your baby will be born.

Don't worry: This type of exam is painless and risk-free, and seeing your baby for the first time will likely be an enjoyable experience.Generally speaking, a formal ultrasound attended at 7-8 weeks of pregnancy more accurately dates a pregnancy than a woman’s last period dates.



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