I found a lot of comfort in the Scriptures which talk about how God controls the womb. I stopped looking to myself/doctors and started pleading with Him to open my womb. I also came to a place in my faith where I asked that if there would not be any (or any more during the secondary infertility) children that God would change my heart so that I would be content. I felt like I was letting my husband and others down and well, it was just very difficult times.
I also found these links helpful:
http://www.fertilityfriend.com/ChartGallery/ charts your cycle to help you pinpoint ovulation. One big mistake women (and even doctors) make is that they do not "baby dance" (s*x) until they think they have ovulated. A woman has to baby dance before ovulation. If you wait until the test kits say you have ovulated, it's too late.
http://www.tryingtoconceive.com/ has many helpful tips with suggested herbs and supplements for both spouses to correct infertility issues.
Here's a book I highly recommend (even though I dislike the title) and why: http://contentmentacres.blogspot.com/search?q=fertility This book educates a woman as to how her body works and explains why ovulation predictor tests are often used incorrectly. I thought I knew all there was about how the female body worked until I got this book. It is WELL worth the investment.