Hi Rosa,

Dont be too stressed if you dont get a textbook positive opk today.

What you saw last night may well have been your positive. Keep Bd'ing because you can ovulate between 6-48 hours after you get a "positive" opk.
I only ever get almost positive and combined with temping I can confirm I ovulate one -two days after I see the darkest second line.

Good luck, sounds like you've done all the right things so far.
sassba