A 'false negative' can occur on a home pregnancy test
. This result means that the at-home testing results report that the woman is NOT pregnant
when she is. At-home pregnancy tests are sometimes sold in 2-packs for women to use both tests at the same time. Testing differently using the same method at the same time is an indication of a false positive
or false negative result.
A false negative may occur if the woman is tested too early into her pregnancy. The hCG
buildup in her urine
might not be in a high enough concentration to be detected by the at-home pregnancy test. Fertilized ovum
s have been known to drift in the uterus
for days before implant
ing in the uterine wall.
These false negatives are rare. At-home pregnancy tests are most accurate in the morning when the hCG
is most concentrated in the urine.
, this term refers to the case where an authentication system
access to an authorized entity