My cat had six kittens late Friday night and early Saturday morning. I'm trying to get the word out early that we have kittens for re-homing but I need to know the genders. I think I have it figured out but I'd hate to give someone a kitten they thought was a girl and have it turn out to be a boy. (or vise versa) They are about 4 days old. If I post pics can anyone help me determine the genders?