The gestation period for cats typically lasts about two months, averaging between 63 to 65 days. However, it can range from as short as 58 days to as long as 72 days in some cases. Most sources agree on the average being around 63-65 days, or roughly nine weeks

. The pregnancy is generally divided into three trimesters of about 20 days each. Early signs of pregnancy may be subtle and include changes in the nipples around 16-20 days, with more noticeable physical and behavioral changes occurring in the later stages

. In summary:

• Average gestation: 63–65 days (about 9 weeks)
• Possible range: 58 to 72 days
• Divided into three trimesters (~20 days each)
• Signs become more visible after 2-3 weeks