Dating by Fetal : Ultrasound is more accurate the first trimester. At 17 weeks 5 days by fus, the estimated date of delivery can range from 10 days before to 10 days after july 26th. Gestational age is calculated from the first day of your last menstrual period. Neither gestational age nor fus dating can pinpoint exactly when you conceived during sex, but it's somewhere around nov. 2, 2013.
Answered 4/10/2014
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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