I am currently 5 days late for my period and I have been experiencing brown discharge only when I wipe, so I only see it on tissue paper and not even in my underwear. I've also been experiencing pelvic pressure,nipple tenderness,dizzines, light headedness, lower back pain and elevated body temperature. I have taken a HPT when I was 1 day late, and another HPT when I was 4 days late and they were both negative. Can I still be pregnant and just testing too early?