I say a pullet. All my pullets are roughly the same age, just a couple weeks apart, and they all advanced differently. I had one at 3 months that I swore was a roo. She just started laying a month earlier than the others. On the flip side, I have one now that is 6 months old and still has only small pink comb. Just like people, they are all different!
My little special needs banty is that same color. Everyone told me she was an EE but I really don't know.