Olive egger, Black copper maran, or Ameraucana?

[CaribbeanChicks]

I bought my chicks when they were 6 days old. They are almost 7 weeks now. I am not sure which of the 3 breeds this chick is, Ameraucana, Black Copper Maran(pretty sure it's not), or Olive Egger? I am also curious about the gender.
Thanks!

 

[JedJackson]

Ameraucana just means Easter egger at most hatcheries, and olive eggers are Easter eggers that lay darker green eggs. So probably won't be able to tell until it lays.