Hi there
Anti-d's will not effect your fertility at all, but there are only a few types that you can safely 'take' whilst pregnant (i know fluoxetine is one of them and think sertraline is another?). Saying this, every case is judged individually looking at the risk to the mother is she is not taking them, and the unborn child.
Speak to your doc and tell him you are ttc, he will work with you on the best solution for you. What could have effect on your fertility is stress/anxiety/depression so don't rule them out completely!
Hope you're ok and pm if you need any more info! kx