Single Mother of 3 with Pregnant Child

I am a single, divorced mother of three (ages 22,17, 10).  Three months ago, my oldest daughter was abandoned by her fiance when he discovered she was pregnant.  She had just been laid off her job at a lawyers office due to cash flow problems at the firm.  She has always suffered from depression and gastroenteritis, and she has been incapcitated by this break up.  At 7 weeks, her placenta tore, so she has been unable to seek employment to help alleviate the expenses.  She has no insurance.  The doctor alone will cost $3,100 if no other complications or special services are required.  She has already incurred 1 trip to the emergency room for the torn placenta.  I take home $1,918 a month with $875 going to rent, an average of $250 (winter) and $350(summer) in electric bills, $60 to $70 in gas bills, $70 in water bills, in addition to telephone, gasoline and food bills.  The $500 a month that must be paid to the doctor thru the 7th month takes me to my limit.  I am seeking a grant to help alleviate some of the expenses until my daughter is well enough to participate in the funding of this pregnancy.