Starting to lay eggs at 8 weeks is typical for Buttons, but I have had some that begin at 10 or 11 weeks. They'll probably start in the next month, especially with lots of light. Also, with only a few quail, you might not see much signs of mating, unless you watch them all day long, especially...
Pics would help.
Not all male button quail have bibs. The red color would indicated male. Blue indicates male, but sometimes a certain degree of grey-blue occurs on a female.