Hello
You need to talk with your boyfriend and explain things like getting the room downstairs fixed so you have a place to live. See if you can talk to his parents about staying there. This is the last thing you need is for him not to be responsible. I lived with someone before marrying him but we had our own place. Call 211 to see what kind of programs can help you in our state.
http://ca.gov/HomeFamily/ChildrenFamilies/Calworks.html
CalWorks or Temporary Assistance to Needy Families
* CalWorks - California Department of Social Services
Find out how the California program for temporary assistance to families works in providing housing, food, utilities, clothing or medical care.
* Women, Infants and Children (WIC) - California Department of Health Services
Learn how low income pregnant, breastfeeding and post-partum women, and children under age five can receive supplemental nutritious food and nutrition education.
* Temporary Assistance to Needy Families - U.S. Department of Health and Human Services
Learn more about the Federal programs which help families in need of temporary assistance and what these programs are called in each of the fifty states.
The link I gave you has more information than this but I think this may help you but it wouldn't hurt to look at the whole website
Good luck