That is an awfully pink comb for 5 weeks. I'd keep an eye on that wyandotte. Looks to be coloring in female (feathering) but the comb should not be that red at this age. If the comb starts to raise off the head AT ALL in the next few weeks there's a good chance it's male. My wyandotte did not get a raised or even pink comb until 16 weeks. You almost couldn't tell she had a comb at all.