Rusty girl - I am always the party pooper it seems! I agree with the others, it sounds more like you are "o"ing - I too get crampy and ovarian pain, then a sharp stab when the event occurs (I can time it to the second heh heh cos it hurts!).

Most things work backwards with TTC. For example - hindsight bias is wonderful when it comes to pregnancy symptoms, such as "I knew I was pregnant because I was so tired/lots of wee/sore boobs etc. But really, all these symptoms preclude AF also . Secondly, you can only accurately predict when you have ovulated, not that you are about to. OPKs can give an indication, but the only way to tell for sure is taking your temp and with the help of modern technology, you can chart it and three days AFTER you ovulate, it will tell you! THEN, about 14 days after this miraculous event, you will either miss your AF, or she will arrive in all her glory.

I suggest finding out about your cycles by temping and charting. There is lots of info in here that can help you, or ask away!

Good luck hun *hugs*