Overseas student marrying an Australian citizen...?

I am an international student over here. My boyfriend is an Australian citizen. I wanted to apply for PR by myself but due to new migration rule I lack 10 points. My boyfriend and me are planning to get married next year December and I am finishing my studies on June. So if i get married after I am done with my graduation, can I still stay in Australia and obtain the temporary spouse visa? Or do i have to go back to my country? Or is it better to get married now so that I do not have to go back to my country while I get my spouse visa? I mean I do not want to go back to my country once I am married. If i get married now will I loose my student visa and as a result will have to stop studying?? WHAT SHOULD I DO?? by the way my student visa expires on March 2013