I felt the same story you lost some eggs as well.if you feel like waiting is not a option on the ones left (specially if there is a chance of shrink wrapping) you can gently cracked into the air cell just enough to see if they are shrink wrapped ( the membrane will be tight against them and papery looking) if it looks like that crack it open a bit more wet it or oil it with coconut or olive oil to see if you can find a beak once you find it gently open the membrane round the beak once you know it's breathing make sure the membrane is kept moist and put it back for a rest. Check on them every day hr and check to see if the veins are thin and almost disappearing if you will only pull back a lil bit of the membrane at a time and give at lest a hrs rest between helping. You need qtips,tweezers,sharp scissors, coconut/olive oil paper towels,trash bag and water. Slow and steady wins the race. Also I know this may not be something you want to hear but it's important if a chick has issues it will not live from i.e insides on the outside it's kinder to cull it. Quickest easiest and less painful way is to well cut the head off. It's not easy for me to say that as I had to do that today with the only chick that hatched out of my second batch and I cried like a baby.