How come my chicken is sitting with no egg?

this is what you need to remember, there once was a chicken who couldn't lay an egg, poor hot water up and down its leg, the little chicken will cry and it will beg (but don't stop) then your chicken will lay a hard boiled egg! If you like fast and easy meals, this is the way to go my friend, if you want a egg that when you crack it chocolate milk will fall out, thats another story you need to research. :)

Some hens just get broody. At home when i was a kid we used to have the odd one that went that way. just put some eggs under them and they will sit on them and i had a uncle that had the same thing happen AND they would sit on the eggs and hatch chickens AND it was the red hens that we had