Dear Possums
I am so sorry to hear of your losses. It sounds like you have solved the conception difficulty. There are quite a few tests you can read about on this thread for recurrent miscarriage. If you are with an IVF program I imagine they can organise these for you. They test for any autoimmune diseases, as well and things like clotting factors, lupus and Coeliacs disease. They are all blood tests so they are quick and easy to do. Take care of yourselves through this time and be kind to yourselves.