I would say that it is most likely a positive too...

They say "a line is a line" and it sounds like she read it within the allocated time.

My first BFP was incredibly incredibly faint...and it just got darker as the days progressed (think I did 9 over 1 week...is that a record?)

Wow...that would be wonderful to have a sister due around the same time...I've tried to encourage mine...but she's just not quite ready yet!