To know if a cat is pregnant, look for physical and behavioral signs such as an enlarged abdomen (usually visible around four weeks), pink and enlarged nipples (known as pinking up), weight gain, changes in appetite (often increased), and changes in behavior such as increased affection, nesting behavior, restlessness, and more sleep. Vomiting may occur early in pregnancy but is less reliable as a sign. Pregnancy in cats typically lasts about 63 days. If these signs are suspected, a veterinary visit is recommended for confirmation through physical examination, ultrasound, or X-ray.

Key Physical Signs

• Enlarged abdomen noticeable after about four weeks.
• Pink, swollen nipples that prepare to produce milk.
• Weight gain despite a stable diet.
• Possible vomiting (morning sickness).

Behavioral Signs

• Increased affection or attachment.
• Nesting behavior (seeking quiet, cozy places).
• More restlessness or mood changes.
• Longer sleep periods.

Veterinary Confirmation

• Vet can gently palpate the abdomen after around 17 days to feel fetuses.
• Ultrasound can detect pregnancy from about 14-21 days.
• X-rays can confirm pregnancy after 42 days when skeletons of kittens form.

If uncertain, taking the cat to a vet is the best way to confirm pregnancy safely and to rule out other conditions such as pseudopregnancy. Avoid pressing on the abdomen as it can cause miscarriage. This information summarizes common signs and veterinary methods to confirm cat pregnancy, which will help identify if a cat is pregnant reliably.