Two things...
My mother worked with billing for a hospital and she tells me that as long as you pay SOMETHING to each of your bills, the hospital cannot complain (although they can try). even if it is only $10 each time, legally, they cannot do anything about it. I don't know how true that is, but the law is the law and they can't squeeze blood from a turnip...
Also, there is a finance group called RESOLVE. they give loans to couples going through infertility to help finance the costs. Although you are pregnant (CONGRATS!!!!), I'm sure that they could probably help you out by giving you a loan to pay them all off and then you would only owe one main bill.
Please forgive me if I've said anything in ignorance. My husband is the finance man in our marriage and our insurance covered all of our treatments (thank god or we couldn't have done it). However, an extremely close friend of mine has been going through infertility treatments for 15 years and she has all kinds of little tidbits on financing it...
Wishing you the best
Jen