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A 21-year-old female asked:

On cd21 is it to soon to get a positive beta hcg blood test? i recieved a negative result on cd21. do i still have a chance of being pregnant?

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 34 years experience
Patience: Patience. A pregnancy test done correctly should give a reliable result 3 weeks after sex or 1 week after missing a period. Done too soon, a negative pregnancy test might be a false negative. Generally, there is no need to test too soon. Also, a woman is not pregnant if she gets her normal, regular period; meaning she should not need a pregnancy test unless she misses her usual, regular period.

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Last updated Sep 29, 2016

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