The first day of my last period was December 14, 2007, now it's January 15, 2008, and I still haven't started. What do I do? The last time I was sexually active was January 6, 2008.. help me! Please

Go to pharmacy and get a pregnancy test kit. Many possible reasons for missing a period or being late. Follow up with doctor ob/gyn. Use county health department if money or insurance is problem. Rob rn