I needd to move out asap but theres no houses or apartments for me?😥😔

I live with my parents.. i have a 1 year old and im 27 weeks pregnant.. i cant stay here anymore at my parents because theres no room for baby #2 and I promised myself i move out… How much is a trailer??? Is it big enough for 3 ??? Me and my 2 babies??! Idk where to live … i live in California so u know it aint cheap here. Any recommended places to live at or to stay with my 2 kids.. heater and cooler is necessary