I totally understand how you feel. If you count my m/c I guess I'd be in my 5th month of TTc, but without it, really only a few I guess.
But I too got pregnant right away, both with my DD, and with the one we lost. My cycle is all screwy now though, and I'm terrified that I won't get pregnant again...at least not with help, or that it's going to take a LONG time now...
I'm on CD2, so we're all right in the same boat!
We have no choice but to just keep on keeping on....and keep on hoping! But I know how you feel, I really wanna rip my hair out when I look at my chart and see things timed perfectly then whammo, nothing...