Domestic violence should not be tolerated. It is criminal in nature and may invoke serious criminal penalties. It should be reported to authorities who may help you. California produces a list of domestic violence helpline numbers for various locations within the state: http://www.fullerton.edu/universityblues/dating_violence/docs/DVCA%20Hotline%20List.pdf.
California has also produced a very informative webpage dedicated to domestic violence which appears comprehensive and provides information on various issues:
You may also report the occurrence of domestic violence directly to local police. An attorney may be of great assistance to you as a domestic (divorce
) case could result from the DV occurrence and your rights should be protected.
Here I have provided a link to the bar association in your area's lawyer referral service under family law
The website for Legal Aid in your area is http://baylegal.org/locations-2/san-francisco/.
Above all, protect yourself and use all legal and common sense measures to keep safe.