This is probably a very stupid question, but.... I just got a rooster and he has been trying to mate with my hens, I was wondering are all their eggs fertile from now on or is it just the next eggs that they lay after he mated with them? Another question I just thought of, Is there a way to tell if an egg is fertile after it is laid? Thanks for putting up with my questions. Also sorry if this is in the wrong spot, had no clue were to put it.