A member asked:

What is the least amount of hcg levels detected in some pregnant women?i read a case where there was very little to be detectd via urine test till6 weeks.

A doctor has provided 1 answer

Unlikely scenario: Blood levels of HCG rise to above 25 units within about two weeks of conception. Urine levels become positive 2-4 days later. In short, sufficient HCG is present in urine to be diagnostic of pregnancy by 4-5 days after a missed period.

Answered 9/2/2018

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