I agree with Kaessa. Don't panic before its time. A lot of hatching issues depend on "what" you are hatching. There are folks who have no hatching issues at all, so it is possible!! As far as assistance, there are some that believe if a chick needs help, then it may not be strong enough to...
Excellent job!
Lacrystol... or anyone... do you think the sticky stuff might be the allantois? I have been trying to figure it out, but I'm still not sure. Or maybe the amnion??