My silkie hen had two or three eggs and started setting, she set for about 19 days right before the eggs were going to hatch and then she stopped and got up and didnt go back to them. She has laid eggs since but would only sit on them for a few days and stop. Lately she has gone and set on no eggs for the day then got up and she hasnt laid eggs for about a week now. I don't know what is wrong with her but she hasnt laid or set for a little while now. Does anyone know what she is doing?