with your progesterone being so low, that would mean that ccyle you didnt ovulate, however with the clomid it looks like it did the job!

EPO should not be taken after ovulation, it can affect implantation.

Vitex can elongate some peoples cycles to 30-40 days, it can also suppress ovulation and do all the things it isnt supposed to do.

There is a herbal concoction called "pregnancy drops" which you can order over the phone from Newtons Pharmacy in Sydney. they seem to work for a lot of people.

Good luck