I have had 4 of 9 that all had good development hatch. That was Friday/Saturday. Sunday I checked the rest and two of them I heard chirping inside the egg so I left them another 12 hours and still nothing. One had pipped (I know ducks can be so slow to hatch) but it wasn't progressing so I helped a bit and there was a lot of blood that came out of the shell. I set these very fresh eggs on April 17. I helped the other pip as well but saw blood and stopped. Now what?