Wyandottes tend to pink up early and both females/males tend to be slow to fully feather. Both of my Wyandottes pinked up early, feathered slowly and combs at 7 weeks look like yours do.
And even beyond that, poor lacing on females can mimic the early stages of the males' white wing bows.
I was *sure* I had a male in my first 2 SLWs but she just had poor lacing.