I'm an avid POAS'er and use OPK's religiously. Sometimes up to 3-4 a day, well I never got a positive at all this cycle and I ovulated. In fact, I witnessed it yesterday during my ultrasound!
So, unfortunately, they are not always as reliable as I had hoped. But I O'd and that's what really matters, right? And to make it even harder not to get my hopes up.....I was ovulating while I was getting my IUI!!!!
Just some food for thought while you POAS this cycle.
Re: PSA regarding OPK's
Good luck with the IUI!
WOAH!!! That is too cool!