labor signs ?

Tonya
How long after bloody show does labor start ? 
Went to doctor yesterday and had my cervix checked was at a 1-2 centimeters . Hour later I had brownish blood every time I wiped. That was a 11:30 . It is 7 :00 am. Since last night it's been pink. ( that's bloody show right?) and I am still getting the pink blood. 
3dayd away from my due date.