Shannon,
I read your other post before this one. I didn't realize you wouldn't know until the end of the week whether or not you were pregnant.
Brown blood is old blood. It could be from many things, including implantation bleeding. It could mean you were pregnant or it could mean that AF was on it's way. It's kinda annoying that way, never knowing what symptoms mean because AF and PG symptoms are the same. I really hope it means you have a BFP coming your way! Let us know!
Jen