it is funny to see, do you remember the event that went along with the gong, could have been why, or it so happens that she had the baby b4, that quite often happens with my games, when i first turn them on and maybe that villager is sick or is part of an event, then when that villager is done the baby shows back up, if your sure the pop was maxed, then she probably had the baby and was just doing as the event said, but it is still funny i know