Yes. It's very hard to sex them at this age. All my chicks grew combs quickly and were reddened at 4 weeks, but I also supplement with probiotics and vitamins until 3 months of age, I had 8 hens. My light brahma is feathering like a hen so far. He/she is 95% feathered at 5 weeks, even under the wings.
My LB is at the bottom of the pecking order and acts and walks like a hen so far. We'll see. My other hen dark brahma has 3 rows in her comb too.
Whether or not if mines a hen or roo, we are keeping the chick unless there's aggression or all day crowing.