Found some more information:
I have copied some information about soy. If there are any other cyster out there with more information, please post.

Thanks
The phytoestrogens in soy are thought to act in a manner similar to that of drugs like clomid. In other words, clomid (and the phytoestrogens in soy) have anti-estrogen like properties. They fool your body into thinking that your estrogen levels are low. This causes a release of FSH and LH which helps to stimulate follicle production.
The soy product most used is called
Soy Isoflavones. It works similar to clomid. You take it on the same cd as you would clomid and a dosage according to what works for you and it will/ has been known to help PCOSers ovulate.
The dose that is best to start with is 80 mg on CD 3-7 or 5-9. If you dont O from that dose then you should move up until you do. There have been some that have taken it late in their cycle and it has helped with O.
FAQ Can I take soy late in my cycle?
I have taken it late in my cycle and Oed, but as with anything you should do it with an open mind.
What time of day should I take soy?
Soy can cause headaches in some so if you want to sleep through your s/e then take it at night before bed.
Do I take it all at the same time?
Yes, you should take the whole dose at the same time every day. Even if you are on a high dose.
What if I dont O on 80mg?
You can move up the dose on the next cycle.
How long till I O with soy?
It all depends on the person taking it. O can take a few days to a few weeks. Keep checking your signs for O.
None of us on this thread are medical doctors. Please use your own judgement when using soy or any other alternative methods.