9 week old Light Brahma. Pullet or Rooster?

[PineAcres]

 

[PD-Riverman]

Pullet.

 

[smudge]

My boy had a wonky tail like that at that age and was slow to feather... My girl did not.

But the dead give away was the comb becoming red while my girl was still pale (like yours)... That happened almost overnight at, hm, around 10 weeks?

Top: Soren and Chloe, with Peaches photobombing.
Bottom: Chloe and Soren.
They're a little over 2 months old here. (They're almost 9 months old now, so there's definitely no doubt who's what. )
Note difference in comb color. The pullet is also more... rounded, while the cockerel is rangy.