HI becca,
I can't give you too much advice on the gonal I'm afraid because I'm only about to start them myself! I have been on clomid for 12 months and it works for me, but I keep m/c. I've have 3 early one's so far. A friend of mine has used to progesterone pess. and has had good luck with those. There are aparently some natural things you can take to improve dry CM. Try perusing the TTC assisted conception forums, they have helped me a lot.
GL with the FHS shots. Let me know how you go!
Bec