She does not show the common characteristics of an Easter Egger (which is what most feed stores and people errouneously call Ameraucana).
She definitely is not an Ameraucana...no beard, muff, slate legs, pea comb, totally wrong color for standard Ameraucana.
Most EE's have a beard/muff and green legs.
She still could be an EE, with some potential of a blue/green egg, as an EE is a hybrid from Ameraucana...but she doesn't appear to have a pea comb (is that single or pea? photo cuts off comb area)...and with the lack of other signs of Ameraucana genes, it is doubtful she'll lay anything other than brown (as her earlobes do not appear white in the photo).
I think she is just a mix....possibly with some Partridge Rock in her or maybe even Gold Laced Wyandotte in her, but her comb is not a rose comb, so not a pure GLW.
Pretty hen who will no doubt lay some nice eggs for you, just not likely blue/green.