Hello: I have 4 hens that are laying and 1 rooster. They eggs are fertile but the hens wont lay on them long enough to hatch them but I could be wrong. Do they keep laying everyday until there is what they consider enough eggs to sit on? Will they not sit on them until a certain day? My mom is crazy about her electricity bill and doesnt want me to get an incubator and my silkies are not old enough yet. My mom wants to eat the eggs where I dont really care, Id rather have chicks but I gave in and brought in all the eggs for her, there was about 15. There was blood in most of them some more then others but nothing that looked much more developed then that. Does that mean the hens were doing good? They leave them at night time, thats what bothers me. They will sit on them alot throughout the day but do take lots of breaks but are protective and make a funny noise when any other chicken tries to enter her coop where she is sitting on eggs. Any advise?