Well, my best piece of advice?
Temping and charting so you know your cycle better.
Keep

fun as much as possible, try not to make it a chore.
As silly as this sounds (and I'm sure a few people won't agree with me) but try and relax a little about the whole process. It can be stressful and worrying, but just try and remember that too much stress is never a good thing. Some is natural, but if it takes over your whole life, then that's not good either. (Ok, really have to take some of my own advice!

) No seriously, it may not (or it may, you never know) happen right away and you can't start stressing about it if you're not pg in a month.