Clearblue Double-Check & Date Pregnancy TestClearblue Double-Check & Date Pregnancy Test contains 2 pregnancy tests you can double-check your result and also see how far along you are (1-2, 2-3 or 3+ weeks since conception). Both tests are over 99% accurate from the day your period is due and are very easy to read. They can be used up to 4 days before your period is due, however are less accurate the earlier you take the test. If you test early and get a negative result, you should test again when your period is due.Clearblue Double-Check & Date Pregnancy Test contains:1 x Clearblue Plus Pregnancy Test with Colour Change Tip1 x Clearblue Digital Pregnancy Test with Conception Indicator