So.... I did my first OPK on Saturday (early evening) and there was only a faint test line (+ the control line) - so I guess this was a negative.
But I tested again this morning (CD12) and the line was much darker! Still not quite as dark as the control line, but almost equal.
Here's a link to a photo of the "stick" showing the line from this morning - is this almost a positive OPK??
when should I test again? tonight? or tomorrow? am hoping it gets darker than the control . Tomorrow will be CD13
(let me know if the link does not work)