what is the method for calculating spousal support / alimony in WA state

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I have been with and living with my husband for almost 1 year next month. We just got married almost 2 month's ago and about to file for a divorce. We just bought a house wich is not in my name. But I am a stay at home mom and have not been working for almost 8-9 month's.My son belongs to another man, and i have lost his child care, his insurance and I gave my car away for free because he is paying on one for me, the car is not in my name but he did write out on paper that he bought it for me and me alone and that he will not take the car from me, do i get anything out of this since he has married me under false pretences? 2 nights ago i put him in jail for assault, he punched me in the stomach i have no where go and unfortunately he is legally allowed to come back here since there is no restraining order in effect until tomorrow I thought that i was pregnant but he had stressed me out so bad missed my period for over a week. this is the first time i had ever called the police. please help