Clearblue Easy pregnancy and ovulation tests are the best ways to know if you are pregnant or if the time is right to get pregnant. In fact, Clearblue Easy says it is as accurate as a urine test from your doctor. All Clearblue Easy pregnancy tests are more than 99 percent accurate when taken the day of your expected period, although they can be used up to four days prior to an expected period. Clearblue Easy tests for the urinary pregnancy marker human chorionic gonadotrophin, a hormone that rises in the early stages of pregnancy. Another advantage to Clearblue Digital is that it provides results with words – “Pregnant” or “Not Pregnant” – whichare impossible to misread. For women trying to get pregnant, the Clearblue Advanced Digital Ovulation Test helps you determine the four best days each cycle to get pregnant.