Pregnant lady worrying about nothing?!

Kelsey • Due 19/01/15 with a baby boy ❤️
I feel as though I worry about everything lol but I am 32 weeks with my first and have no linea nigra as of yet. I am pale so I do know it may be harder to see but it is non existent! Anyone else not have one? Just curious why I don't have one and if it's bad/good? Again, I'm probably just paranoid haha!