There was some discussion about this relating to another member with recurrent miscarriage. Sorry i can't be more help, but i think the upshot was that unless the miscarriage was related to a genetic problem with the embryo/baby, then there was nothing to be gained by using AC.
There is however ways which fertility specialists can help after conception with drugs to help you in the early stages after conception.
PGD is very expensive, but if your miscarrying is related to something chromosomal, then that would be the way to skip that hurdle.

Hope someone with more info (i.e. not as vague as me!) can help out.

I'm really sorry about your loss x