NEED HELP! Hen stopped sitting on her eggs on day 19. There was 4 eggs under her and 2 hatched i checked the other eggs 2 days ago they where still alive inode the egg she abandoned the 2 eggs in the nest and left with her 2 chiks she does not want to take care of the 2 eggs left anymore its been 3 days she only goes in her nest box to sleep i went out today the 2 eggs haven't hatched and they where cold i mean she hasent been sitting on the for 3 days all days only at night i though they where dead and 1 chirp inide the egg and the only thing i have is a heat lamp what do i do and how far should i put the eggs away from the heat lamp they wher going to die