Well my chickens are hatched out and I ended up with 5 out of 7 . One of those I don't believe ever had a chicken in it cause when I opened it up it just looked like a grocery store egg but the yolk was runny, no blood or body parts....I suspected it wouldn't hatch cause it looked empty when I candled it but I took the advice on here and left it in the bator as long as it wasn't stinky or weeping cause this was my first candling and hatching experience. The second egg confuses me because there was a fully developed ready to hatch chick in it, but it never did pip, it was already dead when I opened its egg. The only thing that I noticed was the membrane seemed tough but it didn't look shrink wrapped to me- albeit I can say I've never actually seen that but it looked normal.... any thoughts on what possibly could have happened ? Thanks!