My hen hatched one egg last week and now she is spending more time off of the nest rather than on. I have a second egg that she has been sitting on. The egg is at about Day 16 and when candled last night, looks like there was movement (big black blob wiggled). How long can a hen be off of an egg before I need to worry about it going bad/embryo dying? I just don't know if I should take over at this point because Mama seems to spend more time playing with her hatched chick rather than tending to the unhatched egg. It's not bad (no bad smell, etc.) and as I said, I saw movement last night. Maybe I am just seeing her off the nest for the few times a day that she gets up...who knows...but before the first egg hatched, I had to actually make her get off the nest once a day to go poop. I am going to candle again tonight to see if I can see anything, but after tonight's candling, I have to leave it alone to hopefully hatch. Just wanting some advice "just in case".