Yep - Natural Medicine worked for me in the end (see my ticker). DH and I saw a Naturopath who specialised in natural fertility management. She put us through a rigorous detoxification program which included an organic alkaline diet (also dairy and wheat free), nutritional supplements, herbal & homeopathic remedies and probiotics.
We also switched to chemical free personal care products (MiEssence), as well as chemical-free cleaning products in our home to reduce our toxic load.
The highly acclaimed book by Francesca Naish - The Natural Way to Better Babies - Preconceptual Healthcare for Prospective Parents is aligned with these principles.

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