Clearblue Pregnancy Test can tell you whether or not you're pregnant as early as four days before your expected your period.
This early detection pregnancy test gives you easy to read result in two minutes. The colour tip on the test changes colour to let you know the test is working and will read a simple "+" or "-".
Pregnancy tests work by seeing if you have an increased level of human chorionic gonadotrophin (hCG) which is common in woman who are pregnant. If you take the test after the first day of your expected period, this test has a 99% accuracy rate for detecting hCG.
Clearblue gives you the option to test up to 4 days before your expected period, but if you feel you got a false negative, test the day after your expected period, for your hCG levels may have risen producing a more accurate result.