It’s like 2 tests in 1 – it first detects if the pregnancy hormone is present with over 99% accuracy from the day of your expected period, and if you are pregnant, it ALSO indicates how many weeks since conception occurred 1-2, 2-3 or more than 3 weeks (3+). The Weeks Indicator is 93% accurate in detecting when you conceived. So sensitive you can test up to 5 days before your missed period. Within 3 minutes your ‘Pregnant’ or ‘Not Pregnant’ result in words will appear on the screen. If the result is ‘Pregnant’ the test will also indicate time since conception occurred ( 1-2, 2-3 or 3+ weeks). Please refer to leaflet for how to use instructions.