Hi Liannajay,
Before you call it quits you might want to crack the remaining eggs, starting with just one first. Be careful, if they are rotten they might explode and stick to high heaven. Some people place the eggs in a clear plastic sack beforehand, just incase. Sometimes other hens sneak in a lay an egg in the same nest that another hen is brooding, causing some late hatchers.
Where you see the air sack is where I would begin gently cracking the shell around the fat end of the egg, about a thumbs width up the side. If you smell the egg, it's bad and you can throw it out. If not, continue. You can peal tiny sections of the hard shell away and expose the white inner membrane. If you see liquid, the egg is bad. If not, continue. Poke a tiny area of the outer white membrane and look inside. If you see a live chick, do the following:
If you see the chick inside the inner membrane, but the inner membrane has full blood vessels still apparent. Stop. If you see blood stop and put the egg back under the hen. It is not ready to hatch yet.
If the blood vessels have collapsed and are not evident in the inner membrane, you can hatch the top half of the chick and still put it back under the hen. If the head and wings are hatched or exposed then you can take a look down towards the belly of the chick to make sure you do not see any yellow sac. That would be the yolk sac. It needs to fully absorb before the chick hatches the lower half of the shell. If you see the yolk sac, moisten the inner membrane, being careful not to get too much around the face of the chick, and put the egg back under the hen. If you do not see any yellow sac, then you should be able to completely hatch the chick.
If any of the chicks are alive, and you help them hatch out. Place them back under the hen. She will take care of them.
If none of the eggs are viable, you may wish to then physically lift the hen out of the nest giving her fresh water and food to eat away from the nesting boxes to entice her to call it quits. She may immediately try to go back to the nest. Make sure there are no eggs for her to sit on. You may have to remove her from the nest several times before she gives up the idea on her own. You can also place her in a temporary wire cage to break her. If you can't break her away, make sure to place food and water close by. Some hens really want to hatch out chicks and just won't give up brooding. I would then give her new eggs to set on. She'll be fine, as long as she eats and drinks.
Hope it all works out for you.
