Question?!

Is it easy to miss your ovulation on OPKs ? I was taking 2-3 OPKs a day during my fertile window. The darkest line I got was this below taken around 6 PM.

The next day it was very faint and then became almost invisible.

I'm just like "where did the line go?!"

Do you think I could have missed my big O during the night?

Thanks in advance💖 I am new to this

Bottom test is the darkest. Didn't bother taking a picture of the tests after since the lines were so light.