The three day spotting sounds like implantation bleeding to me. I got it about 2 weeks before my af was due. It was brown and lasted a day. Sometimes when you are pregnant you spot just around the time you usually would get your period. When I was pregnant I swore I saw a little pink on the toilet paper but then I would wipe again and it was nothing. I drove myself nuts going back and forth to the bathroom to check. It turned out that I was pregnant. If you are getting faint lines it sounds like a positive. Can you schedule an appt. with your doc to get a blood test? I recommend taking one with first morning's urine. Urine tends to dilute by the end of the day and the hcg hormone is strongest in the morning when you have slept through the night. Good luck.
are you sure it is not just implantation bleeding. Alot of women have it and think they are not pregnant.
good luck! How late are you?
Im begining to think i was emagining everything AF is coming to visit for the weekend i believe man this sux atleast tho i can start trying again tho.. but in the morning ill beable to know if its actually af or not.