It sounds like we might be ttc around the same time
I have been thinking about ttc for a while and I found the book "Stay Fertile Longer" by Mary Kittel really helpful. It explains all the sorts of factors that can contribute to sucessful conception and what you can do now to help that. I found it really good cos you may think you don't have to do anything until 3 months out (folic acid etc) but there is heaps of stuff that it is imporatnt to start working on even 1 year before ttc (I am a natural planner so I think thats why I liked it so much).
It is not just physical stuff either, but having discussions with your partner on how you will bring up the child (religion, disciplne etc), making sure you are ready (in right job, reduced stress), environmental factors etc.
I got the book from Borders but you could try your library for this or similar books.