If a hen decides to go broody, she will insist on setting on a nest even if there are no eggs in the nest, or even if there are only a couple of golf balls. Gather your eggs daily, no matter what. Then if a hen goes broody, after she's been solidly parked on the nest DAY AND NIGHT for at least 3 days, you can give her some eggs, but mark them so you know they are hers. Continue to remove any fresh eggs daily, or better yet, separate her so nobody else can lay eggs in her nest. That way nobody will stomp on the started eggs and break them. If/when you get this far along, let us know and experienced hatchers will continue to advise you. Good luck!