opk clear blue first timer

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​has anyone used the clear blue opk? I got solid smiley on 11th but got a peak 2 night's ago so how accurate is the clearblue?? this was my test I got solid smiley was taken in pm next pictures are the days after