My IVF clinic gave us the name of an overseas pharmacy, a legitimate one, and I'm sure the meds were less expensive. I doubt there is such a thing as a source for free fertility meds.
I would honestly see about buying meds from people who have some left over. Your clinic may have some that have been donated but they will probably only give you a pen or two, not enough for the entire cycle. People do advertise meds on Craigs List and other sites but ask for pics and make sure they're legit- just follow your gut since there are some scammers out there, and try and find someone local who has leftover meds, that way you can meet in person. I've bought this way also. I have no coverage for this stuff either. Keep in mind if you have a Flexible Spending Acct or HSA, your meds can be reimbursed that way. Sometimes apothacary pharmacies have slightly discounted fertility injections and there are certain websites that sell them cheaper too. One of my RE's used IVFMEDS *******, out of the UK-they have several generic injectables available for cheaper than what you will get here-they are legitimate and I've used them also. Good luck.