I had just helped my chick get out of the egg this morning because it had been 18 hours and the chick had been making no progress in getting out of the egg and it had stopped chirping which had worried me. When I got it out, there was blood in the egg and it came from the back of it. There is a bubble thing on the back and I'm not sure what it is. When the chick first came out of the egg, it was flapping its wings and chirping and opening its eyes, but now it's just sleeping and it has been sleeping for about an hour. I have been checking on it to make sure it's been breathing and it seems to have no breathing problems. Why is it bleeding and what is this thing on it? Thanks!