Bobbie,
Thanks for the info. I was just about to give-up on the OPKs. According to my calendar, I should've ovulated on Fri-Sat. Sat came and went with negative OPKs. I was just about to say phooey on these things, but thought I'd finish the box (as I do enjoy POAS...LOL). Today it was super DARK! I guess O day is more like Mon or Tues. Now I just have to wait patiently for my hubby to get home... so I can ambush him.

& I have to remember to change my ticker... its not so accurate anymore.