They say I'm too young and he's too old..

I have been with my fiance for only 2 years. We plan to get married in May 2008. We have been trying to conceive for 9 months now. I'm 21. He is 42(he looks 30). Although so has two children from a previous marriage, we both want so badly to have a family of our own. After 6 months of trying, I had a HSG done. Turns out that I have only one open tube. At 21, and very healthy, there is actually something wrong with me. I hear and read a lot of stories about women who have trouble getting pregnant, but until you go through it yourself, you have no idea. My family knows all this, but for some reason I still need to tell it. I feel like I'm the only one going through this. I have a box of baby clothes. I have tons of books on this subject. I even had at one time baby toys laying around the house to remind myself to stay possitive. I'm the only one who is having a hard time at that. To everyone who is going though this, I dont even know what to say, I'm sorry.