Thanks for the advice ladies. There are some points there I will be adding to my question list.
We have had a referral to the FS, our GP wasn't quite sure what tests to ask for hence the referral.
I'm pretty sure DH will need to donate some test swimmers, and have a BT.
As for me, initially it was thought I had a hyper thyroid but after heaps of regular BT's, GP feels its not an issue. He also gave a referral to an endocrinologist, who yes does specialize in fertility, but the nurse there felt it would be better to see a FS, as my BT were not warranting enough evidence of a hyperthyroid for the endocrinologist.
When our GP wrote to the FS, he asked the FS to contact us to first off see if we are 'eligible' to see a FS and then if this FS would/could help us. The nurse called us and was great, informative and patient with answering questions.
LionsandBears - apparently 2 blighted ovums in a row, for a 'healthy' young (32) couple is not common, however we have now had an OB, GP and a couple of MW tell us it's the first they have come across in a long time. DH's cousin is studying to be a MW, and she recently went to a seminar on early pregnancy issues, and although miscarriages are more common than recorded data, out of that about 2% are blighted ovums and usually a genetic issue is present. But of course there are minimal studies done as not all women realise they were pregnant, in time to test or track outcomes.

Oh the journey begins...