1. Easy: Simply hold pigmentable edge downwards in your urine stream for 5 seconds. The tip will be pink to indicate that the test is working. Continue to hold the pigmentable end to the flow of your urine throughout the duration of 5 seconds. After three minutes read the result.
2. Accurate: Accuracy greater than 99% of the expected day period.
3.Early Control: The Clearblue recommends the use of the test on the first day of the delay. However, the pregnancy hormone increases rapidly during the early stage of pregnancy, so you can use the Clearblue up to 4 days before your next period. In clinical studies with early pregnancy samples Clearblue presented the following results: 53% of women took effect "Pregnant" four days earlier, 74% of women 3 days early, 84% of women 2 days before, 87% of women 1 day earlier. If you take the test too early and the result is "Not Pregnant" likely levels of the pregnancy hormone is not yet high enough to be detectable. Repeat the test when start delay.