Over 99% accurate from the day of your expected period. Results 5 days sooner. Clearblue Digital Pregnancy Tests can be used to test up to 4 days before your expected period - that's 5 days sooner than waiting until you miss your period to test. Unmistakably clear results in words: 'Pregnant' or 'Not Pregnant.

Clearblue® Digital Pregnancy Test with Smart Countdown is more than 99% accurate in laboratory tests, when used from the day you expect your period.

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.

For your result to be 'Pregnant' there must be a blue line in the control window and a '+' symbol in the result window. The appearance of the '+' symbol in the result window may vary, however, the lines that make up the '+' symbol and the line in the control window should be of a similar width (see pictures A-C).

If you test too early, a test may not pick up enough hCG to turn positive. If you're testing before the day of your expected period, you may see a negative result – even if you're pregnant – if: Your test wasn't sensitive enough for early testing.

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.

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.

Sensitive enough to be used up to 5 days before the missed period. The Clearblue® Digital Pregnancy Test is sensitive enough to be used up to 5 days before the missed period (4 days before the expected period).

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.

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.

There may be many reasons for a negative pregnancy test after a missed period. You may have an undiagnosed medical condition, such as PCOS, or be experiencing extreme stress. After getting a negative test result, you should wait a few days to a week before taking another test.