Get accurate results with the Clearblue Digital Pregnancy Test. This smart dual sensor detects the pregnancy hormone with over 99% accuracy from the day your period is due. If you're pregnant, it also indicates how many weeks since conception occurred, with results appearing on the screen within 3 minutes. The Conception Indicator is 92% accurate in detecting when you conceived. You can test up to 4 days before your period is due, and the results are unmistakably clear and digital.