Looks like it could possibly even be a Barred Rock with lighter colored feathers. Time will tell for us to have a better understanding of what exactly it she is.
It does look like a Pullet, but its also possible for it to be a cockerel that is showing signs of being on a bit late.
It does indeed look like a Barred Rock but the peach fuzz is a bit too blue for my liking, for it be a Barred Rock.
Some pictures please! Maybe of legs, upclose wing images... so we can see what color the feathers are that are coming in, and just a tip for better pictures - unplug the heat...