Where are the kittens?

Yesterday morning, my cat (a stray we took in) was heavily pregnant.

Yesterday afternoon, she vanished without a trace. I searched the house thoroughly, my yard, and all her favourite outdoor hiding spots. No sign of her.

Last night, she didn’t come inside for her evening meal when I called for her.

This morning, at about 7:00 AM, she’s standing at the foot of my bed, meowing angrily at me because the door to “her room” is closed.

She’s no longer pregnant.

Sometime yesterday, she dropped the sprogs. She was neither inside nor outside, as far as our searched showed. No one remembers letting her inside.

Help me find Schroedinger’s Cat’s kittens!