Following 3rd mmc last month, am off to consultant on Tuesday to discuss all the options he has thus far dismissed. He wants me to go to see Dr Armstrong at Portland for immunotherapy but hasnt given me any other options so far. He thinks my PCOS is not a contributing factor. Was listening to radio this morning and heard about metformin being a treatment for recurrent miscarriage of PCOS sufferers and wondered if anyone had any experience or knowledge of it.