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First Response provides award-winning pregnancy tests that can detect the pregnancy hormone up to six days before a missed period. The company also offers fertility products and guidance tools to support individuals through their pregnancy journey.
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Excerpts where First Responseappeared in the AI's answer

First Response Early Result (FRER) is among the most sensitive tests available for detecting the pregnancy hormone (hCG)

First Response Early Result is frequently cited for its ability to detect low levels of hCG up to 6 days before a missed period, offering clear and fast results.