Can a digital pregnancy test be wrong? All Clearblue® Pregnancy Tests are over 99% accurate from the day you expect your period. When using any home pregnancy test, there are a few reasons you may get a false positive or false negative result.

Clearblue is best known for its blue-dye plus-sign tests, but the pink-dye Clearblue Early Detection test is more sensitive and, in our experience, easier to read. This test's sensitivity is similar to that of the First Response Early Result.

The Clearblue Digital Pregnancy Test is basically two tests in one! First it tests your urine to see if the pregnancy hormone is present, letting you know if you're pregnant or not pregnant. Then it tests the strength of the same hormone to tell you how many weeks it has been since you first conceived.

Know this: All Clearblue® pregnancy tests are over 99% accurate from the day you expect your period. False positives very rarely occur, and are often due to medical conditions or certain medications. False negatives, while more common, typically occur due to testing too early or drinking too much liquid before testing.

Read your results Your result will appear within 3 minutes, and some results may be shown in as little as 1 minute – the Smart Countdown will progress more quickly in this case. A 'Pregnant' (positive) result will remain on the display for up to 6 months.

A negative symbol, means you're not pregnant; but if you see another line cross the negative line to form a plus sign, this means you're pregnant. You will also see another line in the control box which tells you the test worked.

Some early pregnancy tests, such as the Clearblue® Early Digital Pregnancy Test and the Clearblue® Early Detection Pregnancy Test, can tell you whether you are pregnant as early as 6 days before your missed period (5 days before you expect your period)1.

As soon as the fertilized egg implants into the uterine wall, the hCG pregnancy hormone is produced. This means a high-quality pregnancy test could detect a pregnancy in as little as five days after conception.

The Clearblue® Early Detection Pregnancy Test provides early detection of hCG and can be used 6 days before the missed period (5 days before the expected period). The test is over 99% accurate from the day of the expected period2.

Drinking too much liquid before testing, using an expired test or not storing it properly (pregnancy tests should be stored between 36° and 86°F) can also result in a false negative. If you think you're pregnant but the test result is negative and you tested early, test again on the day you expect your period.

However, always remember that a pregnancy test result is only accurate within 10 minutes. After the that, it's best to throw the test away to avoid confusion.

If a pink line showed up quickly, then it is likely a positive, pregnant result. If the line only showed up much later (say ten minutes or more) than the control line, it may be an evaporation line.