First Response can detect the pregnancy hormone as early as 6 days sooner than the day of your missed period (5 days before day of expected period). The amount of pregnancy hormone increases as pregnancy progresses.*
* The “day of your missed period” means the day after your period is due. The First Response Kit can be used 6 days before the day of your missed period.
The First Response kit is over 99% accurate when used on the day of your missed period, your due date and the day prior to your due date. The Kit is 62% acccurate when used 6 days before the day of your missed period.
