How many eggs do bantam hens lay before that start sitting on them?

[Chickadee-23]

She currently has 5 in nest i know shes turning them cause every time i go in to feed them the eggs are moved around, i don't think they all hers cause i saw another hen in her nest box, but she hasn't sit on them yet she is one of my broodiest hens this would be her first hatch, but not her first time laying she started last year i didn't have roo at the time and now i have one!! Thanks

 

[Duckopolis]

Bantam chickens are only big enough to sit on five or less. She should set soon, but if she doesn't, remove the oldest egg from her nest when she lays a new one so that she hatches the freshest ones.

 

[Chickadee-23]

Thanks im not totaly sure but i think 2 are not fertile they feel lighter than the others, but i could be wrong hopefully she sits soon, im ready for baby chicks yay!!