Yes 3 weeks it's gone so fast! Only one is just under 12 ounces but she is the runt all the others are over.
Ok will leave it another week, at the moment they seem to be having more fun walking in their food and water bowls than trying what is it there!They are a tad on the young side still. Most kittens are more ready at a full 5 weeks, and even 6 weeks for some.
Give it another week!