First Response Early Result Pregnancy Test First Response Early Result Pregnancy Test can detect the pregnancy hormone h CG up to 6 days earlier than the day of your missed period & is over 99% accurate when the hormone is present in your urine. The test is fast & easy to use, with results in just 3 minutes. The results are clear & simple: two pink lines means you are pregnant, one pink line means you are not. In clinical testing, First Response Early Result Pregnancy Test detected hormone levels consistent with pregnancy in 62% of women 6 days before their missed period, in 78% of women 5 days before their missed period, in 87% of women 4 days before their missed period, in 98% of women 3 days before their missed period & in 99% of women 2 days before their expected period. Hormone levels vary, so some pregnant women may not have detectable amounts of the pregnancy hormone in the urine on the day they take the test. If you test early with a negative result & you do not get your period within seven days, you should take another test.