Egg fertility

[obsessiveanimallover]

I just put my eggs in the incubator about an hour ago. My question is- How long do the eggs stay fertile ( like days/weeks)? I know my eggs are about 2-3 weeks old because I was waiting on my incubator to arrive and to get adjusted and stuff. I dont want to put them in and then be dissapointed when nothing hatches out in three weeks. Any suggestions?

 

[hlf1996]

After 7-10 days the hatch rate will start to lower.