All pregnancy tests are not the same. First Response First Response Early Result In-stream Pregnancy Test with patented ultra sensitive technology can detect very low levels of the pregnancy hormone, so you can know sooner. EARLY RESULTS test 6 DAYS before your missed period (5 days before day of expected period) ACCURATE over 99% accurate† * from the day before your expected period EASY to read and use results in 3 minutes CLINICALLY PROVEN  View more