What movie has a fam travling down dark hwy, picks up girl with dead baby, passes same shack over and over,?

I saw this movie around 2005, not sure when it was made, the fam took a detour and was on a deserted highway, they kept passing the same shack , they even stopped at the shack, eventually picked up a girl with a baby they later found out the baby was dead... what is this movie?