"She's a naturally athletic, fit and a gifted horse aerobically," Littlefield said.
"I can't fault the horse, and we'll see how she goes on Saturday."
Littlefield has absorbed pressure before with She's Bulletproof, a Group 1 placegetter who was recently retired, and said she was not feeling that sort of pressure yet with Concord Connie.
But she is aware it was mounting after the filly's last start win and success on Saturday may raise that bar.
"We haven't gone to lofty heights, we're in a handicap for three-year-olds," Littlefield said.
"We haven't gone too high and this might be her last run before she heads to the paddock with spring aims.
"She's a filly that is still quite fragile at times, quite sensitive and I think doing too much at this time will be detrimental to her future."