Cats are pregnant for about 63 to 65 days on average, which is roughly two months or about nine weeks. However, the gestation period can range from 60 up to 72 days in some cases

. This pregnancy duration can be divided into three trimesters of approximately 20 days each. Early signs of pregnancy may not be visible until two to three weeks in, with changes such as nipple color (known as "pinking up") and behavioral shifts becoming noticeable as the pregnancy progresses

. In summary:

• Typical gestation: 63–65 days (about 2 months)
• Possible range: 60–72 days
• Early pregnancy signs appear after 2–3 weeks
• Pregnancy divided into three ~20-day trimesters

This timeline allows pet owners about a month after signs appear to prepare for the arrival of kittens