Advice please!

We have been TTC for more than a year and a half with no luck. I currently work for a company with medical insurance that does not cover fertility treatments or tests of any kind. We are already in the hole $$$ in medical expenses...does anyone know of any assistance programs or additional pay out of pocket insurance that would help? I have a strong feeling we will need IUI or IVF and we reeeeally don't have the money to pay for that!