Over 99 accurate in pinpointing your 2 most fertile days ampndash with unmistakably clear digital resultsin every cycle there are only a few days when a woman can conceive so having sex on these days is very important if you are trying to get pregnant the clearblue digital ovulation test helps you maximise your chances of conceiving naturally by identifying your 2 most fertile days each cycle by measuring the changes in level of a key fertility hormone ampndash luteinising hormone lh its more