The Clearblue Pregnancy Test with Weeks Indicator is the first and only test that is as accurate as an ultrasound scan at dating pregnancy. Its Smart Dual Sensor ™ not only tells you in words if you're 'Pregnant' or 'Not Pregnant, but also tells you how far along you are.
So accurate... tells you how many weeks
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.