I'm having the same problem. I've taken so many test and im two weeks late on my period and I still get negatives. But I have all the symptoms. You should go and get a blood test. Some people just dont get positive test. Like me. So go to the doctor and get checked out! Hope this helps! (:
there's sooo many factors that play into your period being late.. I've been 10 days late before, took a test (negative), then got my period that night.
if you really think you're pregnant, just go to the doctor. blood test may have different results, or you could have something simple going on.. stress, bacterial infection causing the discharge, etc.
good luck!!