The vast majority of chickens have 4 toes. 5 toed breeds are the silkies, Faverolles, Dorkings, Houdans and Sultans. So, in your case, counting toes is not going to help.
If you post a picture, we can id your bird for you.
An easy way to tell the difference is where the bird came from and how much you paid for it. If it came from a hatchery, it's an Easter egger. The sole exception is Meyer hatchery, they have blue Ameraucana and they cost about ten times what an EE costs.
If you bought the bird from a breeder, they should have been able to tell you the color of the bird if it's a true Ameraucana.
Good rule of thumb is.....if you have to ask, you have an Easter egger.