Hey Pebs,
I understand how you feel, it's so frustrating month after month when it just doesn't happen. I was TTC #1 for about six years and thought that maybe it would never happen and that meybe it just wasn't meant to be for me. But here I am after so long, clomid and IVF with my beautiful little girl - and it is VERY worth it.
Chin up sweetie, you will get there and all the frustration and disappointments will only make so much better and more appreciated in the end.
It is frustrating and you definately deserve to vent and be a grump as much as you want!!
I hope it happens for you soon!