Hi Dan
Definantly dont give up hope. I have pcos and conceived after 2yrs of trying using clomid. I conceived on my 3rd cycle. I havent tried metformin yet, but will be going on it after this pregnancy. Also our first was conceived after 5mths of trying without any help (pcos undiagnosed). So it will happen for you, it might just take a little more planning and time that's all.

All the best

Love