How can you tell if a cat is pregnant?

After becoming pregnant, a cat stops going into heat; if a male tries to mount her, she resists and may even attack him. She also shows swollen mammary glands, increased appetite, weight gain, sleepiness, darkened nipples, and a larger belly.

The owner can take the cat to the vet for an ultrasound or X-ray; if pregnant, supplement nutrition appropriately. During pregnancy provide a stable, comfortable environment to avoid stress-induced miscarriage.