I think I have walking Pneumonia

As of this morning March 21, 2010 5:51 am my mucus has turned grey/green. My symptoms started March 14/15, 2010 i had a fever at its highest of 101.1 then the all night coughing. Then i coughed up blood for two days in my flem (phlegm). After that the flem (phlegm) changed color to neon green to now where it is grey colored green and sometimes brown. I have lost my voice completley. I am not too tired I can still walk around fine. I am just worried because I am away at college and haven't been able to get an appointment and I am wondering at this point should I go to the emergancy room or just wait till monday to go to my college health center.