My main problem is sustaining a pregnancy once it starts. We've had 2 miscarrages that we know of in the last 4 1/2 years. It is difficult for us to get pregnant also, but losing them is the hardest thing.
The book I have (one of many, but a fav and easy to read) is herbal healing for women by rosemary gladstar. In it, it says, " vitex will always enable what is appropriate to occur." p.257.
I have to confess that I don't take meds well and tend to forget to take them, so I don't know if vitex helped or not.
An aside, most mds look down on herbs in general, so most arent receptive to their patients taking herbs.
Good luck
shannon