Our Most Accurate Results 5 Days Sooner.* Over 99% Accurate** from the day of your expected period. Americas #1 Selling Pregnancy Test Brand.*** *FIRST RESPONSE can detect the pregnancy hormone 5 days sooner than the day of your missed period. (4 days before day of expected period). **99% accurate at detecting typical hormone levels. Note than hormone levels vary. See insert. ***Data on file.Other products from HerbsPro