Please do not have said thatThis is the equivalent of giving someone a chocolate covered tampon
They lay fertilized eggs if they had sex first. Except fish, which are fertilized outside.@Psychronia
As @Harvester said. Eggs that are laid externally are never laid fertilized, at least as far as I know. Every animal that lay eggs (note, not every single species in the families listed lays eggs) from fish to birds to reptiles all lay unfertilized eggs. So generally speaking, it'd be just a regular egg unless there's something fucky going on there. Besides the whole harpy thing.