S.H.
Here are some links for info.:
http://www.hr.ucdavis.edu/Work_Life/Life/childcare/financ...
http://www.4children.org/news/399ccar.htm
http://www.voiceofsandiego.org/articles/2008/03/31/educat...
http://www.grantkit.org/singlemothers.htm
http://www.nccp.org/profiles/CA_profile_14.html
Try Google searching "government funding for child care" or "subsidies for child care", or "subsidies for single parents" etc.
It will take some research, but if you find something it will be worth it.
All the best and good luck,
Susan