Kim,

firstly welcome to BB - glad to hear you are finding it helpful.

If you O'd last sunday that would make you only 7DPO (days post ovulation), and is unlikely that a pg test would pick up a positive result that early (not that it has never happened, but very unlikely). Most tests pick up at earliest about 10DPO. The pains you are feeling could be the onset of AF or could very well be implantation cramping (hoping for you it is the latter )

So, it will most probably just have to be a little more waiting (yaye - the game for all those TTC to play!).....

hang in there. I have my fingers crossed for you.