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The lab urine tests looks for the presence of HCG (a pregnancy hormone) in your urine.

if you get a positive- the only way it's wrong is if you've taken HCG containing medications (for infertility treatments) or if you have a tumor that is producing HCG-very rare.

if you get a negative- the test could be wrong if it was done too early after ovulation, you could be pregnant, but not producing enough HCG to show up in a test.

~pawsalmighty

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10y ago

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