Faint second line 7dpo-what does this mean?

[Yo_Yo]

I've just started using opks, and I got my positive opk and ovulated 7 days ago.

Anyway, I guess I pointlessly decided yesterday and today to use them to see what they showed up. Yesterday's was white, but today's has a noticeable light pink second line?
Is this normal?
What are you opks like after ovulation?

 

[Renaendel]

Opks can fluctuate in the TwW. It may have to do worth the varying amounts of estrogen in your system forcing a little LH into your system. Last month at 13dpo I had an opk that looked like it would turn in a day or two. Started my period the next day.