Accuracy 1st trimester ultrasound dating datingchat

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When excluding the cases with no fetal pole, the median discrepancy of EDUGA versus RGA was 2 days (interquartile range (IQR) 1 to 3.25).

The correlation coefficient of EDUGA with RGA was 0.978.

I would like to know the accuracy of ultrasounds in the first trimester. On Feb 2 I went off birth control for good & had withdrawal bleed on Feb 5-8.

Ultrasounds commonly are used to determine the age of a fetus.

I had an ultrasound on 4/26 that dated me 11wks, 2d CRL 45mm with EDD 11/12.

Ultrasound on 5/14 dated me 14weeks, 0days with CRL 82mm with EDD 11/12.

I had sex with another partner unprotected for the month of Feb - currently.

I had an ABDOMINAL ultrasound on 4/1 that dated me 7wks, 0d with an EDD of 11/18.

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