Confused with the Clear blue digital ovulation test

Hi all, this is my first post to the community..i decided to use the clearblue digital ovulation detection kit..i did the test, first day it was negative and since than from last five days it is showing the flashing smily (high fertility days) i was expecting to see the peak fertility result after 2 days of flashing smily but it didnt hapen..is it possible that from last five days i m on high fertile days but didnt reach the peak fertile day yet..m little concerned about the ovulation..please help..