That and Wyandottes just aren't obvious about it until way later. I had a young lady that kept playing games with me -- every day I'd change my mind.
She was a lady. She remains my best layer.
I do recommend, since you're watching them so closely, setting up a little "chick studio" and...
Don't panic yet, hon, both girls and boys get wattles And they all grow at different rates.
If you see those puppies turning bright red in the next couple weeks, THEN you can worry.
In all honesty, you're not going to be able to even GUESS until they're at least 6 weeks, and even then it's...