Two of my eggs started hatching this morning and they were both peeping and moving aroud but now the first one is hardly moving and not making any noise at all. It only piped a small hole and gave up. The other chick piped a bigger hole and is still making some noise but isn't trying to hatch any more. Their membranes are getting dry and leathery. Should I intervein? I had 2 others that were rolling around and making little chirps but now they aren't moving or making any noise at all. I don't know what to do.