My nurse thought I had prescription coverage when she ordered my meds for my first cycle, which came to somewhere around $8,700 from Cigna. 
When I told her we were OOP, she called my prescriptions into Free.dom Fert Ph.armacy and they signed me up for whatever rebate programs they had. (Small in comparison to the meds, but every bit helps.) I was also able to order meds as I needed them. I ordered enough for 8 days of stims and then went from there ordering meds a couple more times later in the cycle. They have free overnight shipping--only tricky part is Fed Ex doesn't deliver on Sundays, so I had to factor that in. (I also live in an area where there are a few Specialty Pharmacies where I could pick up meds in an emergency--they'd just cost more than Freedom.) Cycle one I ended up with 4 vials of Menopur leftover--not bad.
Not sure how Follistim works, but Gonal-F contains overfill. My nurse ordered the smaller dosage vials, as they contain a larger proportion of overfill compared to the larger dosage vials. Here is about what I remember:
Gonal-F prefilled 300 iu pen contains 75-85ius overfill--use a needle and McGuyver that liquid gold outta there!
Gonal-F 450 multidose vial contains about 600 ius, so 150 ius overfill
Gonal-F 1050 multidose vial contains about 1200 ius, so 150 ius overfill (thus the 450 vials are more economical, because you'll get more overfill out of them)