Implantation must : occur first, before HCG is measurable. 7 or more days is usually required, successful implantation can occur. However, in life, strange things are remotely possible. An ultrasound measurement of the fetus when 7-8 weeks along can be very accurate in picking due date and counting back to conception time.
Answered 1/30/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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