Hi Girls,
I found mine gradually got darker over maybe 3/4/5 days.....I was testing 2 sometimes 3 times a day though so I was sure I caught it!
When I did actually ovulate (or when it detected my lh surge) I never actually got a 'dark as/darker than control line' this was with ic 's from fertility plan on ebay. I only knew that my darkish line was my positive as I backed it up with a cb digi and got a smiley face that day with the same pee.
Good Luck
