New! FIRST RESPONSE Early Result Pregnancy Test can now detect the pregnancy hormone, hCG, 6 days before your missed period. Patent pending, Polymeric Amplification Technology (PAT) allows only FIRST RESPONSE to detect the pregnancy hormone at lower levels than ever before. It is the ONLY pregnancy test that detects the pregnancy hormone 6 days before the day of the missed period, which is one day sooner than any other test on the market.