Clearblue pregnancy test is available in two packages,a single and a twin pack containing one and two tests respectively.Clearblue pregnancy test is more than 99% accurate and with a readable and clear result.The sign (+) means that you are pregnant and (-) that you are not.The result is obvious in just 2 minutes.Furthermore,Clearblue offers the ability to use it up to 4 days before the expected menstrual period date