My first hatch attempt I had 17 eggs go in that were very active (but I thought they looked a little behind, was hoping it was just my inexperience,) and ended up with one that hatched on day 24 one thet hatched day 25, but died in the night. Found out the brand new thermometer I had bought (and...
Awe. Sorry to hear that. That's hard. Out of my last hatch I had 3 (out of 16) that made it to day 20/21. Fully developed, 1 had completely aborbed the yolk, one had almost absorbed it and the 3rd had just started. One had even internally pippped. Stinks to have them get that far and not make...
I, personally, would tap a hole into the egg's air cell and stick my finger in to touch the membrane and see if it moves, if not, I would go ahead and eggtopsy it. With the other two hatching chances are that one didn't make it.