I have a chick that is on day 20 and pipped on its own. I was scared it wouldn't be able to breathe so I took part of the shell of to see its nose and let it breathe. 4 hours later it hasn't moved to zip the egg and still has its nose sticking out. So I zipped it for the little one and left the top on with the membrane all it tact. The baby is breathing and chirping but not trying to get out and I can still see the veins in the membrane and I'm afraid to leave it overnight while I sleep. What should I do ?????