So sorry to hear you're feeling blue. Definitely been there before but I know it doesn't make it any easier hearing others say they have felt the same thing.
The only advice I can offer after ttc for 15+ mos and 2 mc's is that you can't let ttc rule your life. I'm not saying I always listen to my own advice, but I do believe I'm becoming more accepting that it will happen for me, but it's obviously going to take a bit longer and be a bit more work than some of the lucky ones. I started out being totally jealous of friends and coworkers who were preg, but now I just try to feel joy and also remember that all of those women have stories behind their pregnancies that may be much worse than mine.
This month I started charting my temps and cervical mucus and I have to say it has been a great help for me emotionally and physically. Not only am I beginning to understand my body better and learn to listen to what it's telling me, but I have met SO MANY supportive women to go on this crazy journey with. Some are only a few months into trying, others have been here much longer than me.
I would really recommend that you read up on Fertility Friend and learn all about charting. Get yourself a good thermometer, read lots of the posts on this board. I see that you have about 5 days until ovulation which means if you start soon you may actually get to see your temp shift and take full advantage of charting. You have a long cycle with 40 days and I think that charting will really help you to pinpoint when to do the BD and maximize your chances. It will also help you to discover potential problems (like you're not ovulating, you have a short luteal phase, etc).
If you're interested in charting take a look at this thread I started, I tried to put some basic information in the very first post and there are some very lovely ladies on there happy to help out and stalk your chart for you!!!
https://www.babyandbump.com/trying-to-conceive/228332-new-charting-join-other-newbies-here.html
I probably sound like a charting salesman (or whacko!), I just think that so many people miss their peak fertile times and charting is a fairly simple way to remove one more obstacle from ttc.
Hang in there hun, you're in a great place since you're yet to ovulate, still a chance for a BFP in 2009!!! Sending loads of baby dust to you and happier days ahead!!!