Well yesterday was day 20 and one hatched early but only one so far today is day 21 and I'm thinking this is going to be the worst hatch ever I only hear one more egg chirp it's under my broody hen with no chicks yet the other one has one. Also it's hard for me to tell if eggs are fertilized or rotten as I had a rotten egg and didn't know it it's especially hard with the brown eggs I can't see through their shell and if I see anything through the other eggs it's just black with the air sack does that mean it's fertilized?