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Is it true that a pregnancy test always turn positive after 10 minutes?

April 26, 2017Minutes Parenting positive pregnancy pregnancy test turn

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Is it true that a pregnancy test always turn positive after 10 minutes?

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No, but the reason they recommend your not read the test after the 10 minute mark is because a very faint evaporation line can appear, and is often mistaken for a positive, when indeed it is not one. If a test is a ‘true positive’, the line will be the right color and appear very soon– with in the first 10 minutes. After the ten minutes are up without a line having appeared, that is considered a negative. Any line that appears after the 10 mins is an evaportation line and not a positive result.