2 doctors weighed in:

About bhcg blood test, how much more accurate is it compared to the urine test?

2 doctors weighed in
Dr. David Fein
Preventive Medicine
1 doctor agrees

In brief: Very

A serum (blood) pregnancy test (in certain labs) can detect a pregnancy as early as 7 days after fertilization, or 7 days before the expected menstrual period.

In brief: Very

A serum (blood) pregnancy test (in certain labs) can detect a pregnancy as early as 7 days after fertilization, or 7 days before the expected menstrual period.
Dr. David Fein
Dr. David Fein
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