Is this a rooster?

[Asterium]

10 week old light brahma "pullet" from tractor supply. I only have one brahma so comparing to another brahma is not possible. "She" was in a carrier in the house because I was washing "her" feet because it's been raining nonstop for 2 weeks. I have my suspicions. But I have seen brahma hens have red combs at 10 weeks so I'm very confused lol.

 

[JedJackson]

The comb seems small even if it is colorful. I'd give it more time. Within a few weeks cockerels will show male specific feathering, so maybe wait until then while watching the comb for growth.