I think another month before she lays. Her comb will get much bigger and redder before then. Andalusians get combs like leghorns, so it's going to get huge and floppy! But don't worry, that is definitely a girl!
Not just yet, but it won't be much longer. Comb is still pretty pink, but getting redder.
Most of my pullet acted pretty weird the few days before they started laying. Most of them just got super friendly and were tripping me every time I went outside, but some of them just acted plain crazy. I think behavior is as good an indicator as comb size and color.