Rmsh1 I'm so glad for you, sounds like you and I have the exact same problem. Except the specialist told me there was no way my thyroid could effect ttc, and I had to twist my gps ARM to get a blood test. He said normally at 21 days but that I should do it right after bleeding. I expressed my concern about progesterone and he changed to "after ovulation" but didn't say how long after. My gp hates that I chart, and doesn't think its worth investigating til I've been ttc for 2 years.
Long story short, when I hit 1 year I shall be going to a new gp. I'll still have 9-10 months before my insurance will cover reproductive specialists, but hopefully the gp will look at progesterone cream or cloimid which are already covered under prescriptions.
At the moment I'm having some success with 75mg thyroxine, 200mg b6 and 2000mg vitex. Started soy and evening primrose this cycle too. Oh, and been taking prenatals since starting ttc. Can you let me know what, if anything, works for you?