Welcome to the site!
No Ball python should eat mouse pinkies, they are way too small. Ball Pythons can eat hopper mice from the day they hatch. You want to feed your BP a rodent that is as wide as the widest part of the snake. every 5-7 days.
Checkout these threads:
http://ball-pythons.net/forums/showt...ius)-Caresheet
http://ball-pythons.net/forums/showt...t-Thermometers