I don't have any lines and I'm having a girl. Maybe after she is born i'll get the line like spade.
mine was above my belly button (and faint below), but very dark above... mine lasted a while after I had both my kids too!
I've got a faint line both above and below my navel. It'd probably be darker but I'm really pale-skinned. :)
Mine didnt develop until AFTER I delivered my daughter!
Mine is super faint below the belly button...for a long time I didn't even notice it. It's quite dark above the belly button. All normal. And in my case the old wives tale Heather talked about is true..I am having a boy.
Mine's very faint, but it's both below and above the belly button. I heard this old wives tale that if the line stops at the navel, you're having a girl, but if it continues above the belly button, it's a boy. Not accurate in my case, though...I'm having a girl ;-)