This is my 12th day of missed period. About 2 weeks before I was supposed to get my period, I went hiking and when I got home I noticed brown spotting. That was once and never came back. I've been getting regular white/clear spotting like usual. I usually get tender/bloated breasts the few days leading up to my period but I didn't get it this time. I haven't had any symptoms to think I am pregnant other than stomach cramps every day since my missed period. It has been 12 days now and I've taken 5 pregnancy tests-all negative. I'm 26 years old and the last time that I was late on my period was when i was 16 years old and I skipped a whole month. I wasn't sexually active at the time so I knew I wasn't pregnant. But ever since my period has been pretty normal, having 33 day cycles. I'm so confused as to why I'm not getting my period! Any thoughts??