I'm really sorry to hear about your failed cycle. I also had 6 failed cycles before I moved on to IVF, in addition to having waited way too long to begin an evaluation...
The stress does not decrease your chance of conceiving. So, though it makes the waiting particularly difficult, at least it doesn't mean you have less of a chance to become pregnant.
Usually, after your 6th failed cycle (which I hope you won't have) your situation should be reevaluated.
I think we keep going because we don't even know how to stop...
Good luck,
Rachel Inbar
www.fertilitystories.com