CB OPK ?

Jo • Both 41...TTC for too long
Ok so I am on my 2mo clomid 50mg for cd5-9. Today is cd13. The clearblue opk kit is the 4 most fertile days. This morning I got my 5th flashing smiley face. I was really expecting the solid face! I'm alittle stress as my mom is sick so can O not bbe happening? I'm on my last green day in glow also. Worried. Has this happened to any of u? 
​This cb test says to use FMU the other cb tests say don't.... So confused.