Eggs didn’t hatch

[Harris14]

I had eggs in the incubator, candled them after a week all looked good. 3 of my hens went broody so I put around 10 eggs under each hen. It’s been way over hatch time so I pulled the eggs this morning and it looks like the babies died in the eggs after putting them under the hens. Only 2 eggs had babies in them. One pipped through the sac but died and another just died but both were fully formed. What could have went wrong. I’ve took eggs from the incubator and put them under broody hens before and almost all hatched.

 

[Chicken_tiger_catt]

what breeds did the eggs come from, how young/ old is the one who laid the eggs, and what has the weather been like lately?

 

[Harris14]

what breeds did the eggs come from, how young/ old is the one who laid the eggs, and what has the weather been like lately?

They were barnyard mixed. The oldest hen is 3 the youngest a year old. The weather is going from hot to cool. Raining almost every day.

 

[Chicken_tiger_catt]

They were barnyard mixed. The oldest hen is 3 the youngest a year old. The weather is going from hot to cool. Raining almost every day.

the weather probably had something to do with it.