Ensure peace of mind with the Rexall One Step Pregnancy Test, which provides early detection of the pregnancy hormone up to 5 days before your missed period. This reliable test offers results in just 2 minutes, allowing you to quickly and easily find the answers you need. With over 99% accuracy from the day of your expected period, the clear plus (+) or minus (-) results make it easy to understand.99% accurate at detecting typical pregnancy hormone levels. Hormone levels may vary.