You most definitely want to read Taking Charge of Your Fertility - I got a copy at the library.
I found OPKs to be too stressful and after a few months stopped using them, just relying on my temps to tell me if I had ovulated and DTD a lot leading up to that =)
Your Dr may be open to doing blood tests at certain times in your cycle for FSH, LH and progesterone levels since you have been trying - I would also go ahead and get a semen analysis on your DH. Mine got tested and it ruled him out as the problem - others have found that their DH had the issue....
The only supplement I used was PreSeed because my CM was almost never what it needed to be during my fertile window.
Temping didn't work for me, my doctor said they didn't seem to have much luck for her patients either. I'm using OPK's. We just got blood work done and semen analysis etc. Yesterday I had an HSG done (about $200) and next month I start fertility treatment.
I also tried about a year and didn't get pregnant, it's strange because hubby and I are very healthy people and we still have trouble.
I'm crossing my fingers for you and I. :)
Thank you PSA. Good luck to you too. I had no idea this journey was going to be complicated. I have faith it will happen, its just going to take a while :)