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’, also tells you how far along you are.
Clearblue® recommends you take a pregnancy test from the day you expect your period. However, the level of pregnancy hormone increases rapidly in early pregnancy and Clearblue® Pregnancy Tests can be used 5 days before your missed period (which is 4 days before your expected period)
First Response digital and manual tests are the most sensitive tests on the market. They can detect hCG-h. … Clearblue Easy and EPT are both less sensitive than First Response, but more sensitive than other tests on the market. The sensitivity of Clearblue Easy Earliest Results was measured at 25 mIU/mL.