Last weekend it looked like I was going to start my period, which I should of because it was around the time I should of started, but I really never started bleeding it had a clear stringy discharge with a little but of blood in it, and now a week has gone by and still doing the same thing and haven't started. My chest is tender also and never have problems like that, what does the discharge mean and why does it have spots if blood in it? Never have had this problem confused on that and why haven't started.