Hi Melissa,
i can totally understand how you feel and so can everyone else on here, i bet, hunny.
Its terribly frustrating, but as i like to look at it, the longer you try the closer you are to your bfp, babe!!
Have you looked into a clearblue fertility monitor? You dont say how your cycles are, so i dont know if its any good to you, but a lot of girls on here also do charting and opk's. You can get opk's really cheap on ebay and that can help as well.
Have you joined MyMonthlyCycles.com or FertilityFriend?
As far as your hubby is concerned a lot of girls have reported really good results when trying vits, as your DH is on, and the other stuff, like boxers and not briefs.. eating habits etc.etc..
I wish you both all the best and your time will come!!
Sorry, i have no better advice...

, xxx
ps, just wanted to add im now also on Primrose, vit b complex, agnus castus and baby aspirin- some cocktail, eh. Ive just figured what the heck you know, lol...xxx