I've been having pregnancy symptoms: extreme fatigue, lots of cramping over the past couple weeks, very hot constantly, white odorless discharge (milky) for 3 weeks+, nausea that comes and goes all day long (never bad enough to puke though, but it feels like it some times), veiny nipples, etc.
I've had a couple negatives, but took one today after holding my urine for 4 hours and got a very very very faint line that was within the time constraints. The line got a little darker afterwards and it definitely there.
Please look as these pics (these are from before the time constraints were over).
http://tinypic.com/r/2mw8kgi/5
http://tinypic.com/r/2q9w5yq/5
http://tinypic.com/r/33048p3/5