This little sweetie already reacts and walks toward the sound of my voice

[Warpy]

22. Looks to be five and a half weeks old

so I hope you picked up a little KMR, s/he is still too little to be completely weaned. That happens by 8 weeks.

As for the holes, it's often difficult to tell on the really tiny ones. Two holes is female, one hole plus a little dot on a lump is male, but sometimes the males have subtle lumps and big dots, so I've gotten it wrong once and she was a he.

Next week those ears will be big and on top of the head, the eyes will start to change color. The week after that is my favorite, when they run sideways and try to pounce, they're hysterically funny.