Hello. I am new to the BYC. We have 8 hens and 1 rooster already. My daughter is about to turn 6 and she wants to incubate eggs. We bought an incubator and egg turner but my question is when my hens lay the eggs how quickly do they have to get put in the incubator? Also I just put the rooster in the coop with the hens last week. Will the eggs be fertile already? Any help is greatly appreciated.