I am hatching call ducks started yesterday the first one zipped around but didn't pop the top off the egg. So I took it off and he came out fine. Next one went half way and stopped I fineshed took off the top and he popped out an hour later. Noticed the 3rd one just had his original hole didn't get any further listened didn't hear anything so I helped but he was dead maybe if I would have helped earlier?? fourth one had zipped around last night I took the top off again get up this morning and he still isn't all the way out noticed his little wing was stuck to the side of the shell so I helped but he still didn't come out. tried to cut shell but it started to bleed so I stopped. noticed like the egg yolk wasn inside his naval yet still a big yellowish bump in the egg shell left him alone will it go in? Will he be ok? What to do??