lots of blood????

[cartersmith]

k so i had 8 silkie eggs this is my 3rd lot im finding it so difficult hatching them. well out the 8 only 1 was doing well and was due 2days ago. i left it anyway just incase was late hatcher and was prayin so much it would hatch as this would be my first silkie i have hatched... anyway this morning i get up to find it had hatch but it DEAD and there was so much blood in the bator.
what happened?????

 

[Chicken Charlotte]

A guess from me its yolk sack was not fully absorbed or a vein or something inside broke while hatching.