Clearblue Pregnancy Test with Colour Change Tip offers you 7 signs of certainty: Accurate – No test is more accurate - 99% accurate from the day your period is due Sensitive and Early - can be used up to 4 days before your period is due Clear – the only test to give clear (+) and (-) results Fast – gives your result in just 2 minutes Easy to use – the Colour Change Tip and the control window show the test is working Doctor Recommended – Brand most recommended by doctors!