feel so tired and so sad

Been TTC for 2 years I've had bloods from the doctors and now it's a 14 week wait for a letter from the hospital to say they've referred me and then I have to wait for a appointment then, Were thinking about going private but the consultation is £220 itself but I don't know what else to do, my husbands fertility has been checked and he's ok, I'm just so sad and feel like a failure