1. What is the Cat Pregnancy Calculator?

The Cat Pregnancy Calculator estimates the due date for kittens based on the breeding date. Cats have an average gestation period of 65 days (range 63-67 days). This tool helps breeders and pet owners prepare for the birth.

2. How Does the Calculator Work?

The calculator uses the standard feline gestation formula:

Where:

• Breeding Date — Date of successful mating
• 65 days — Average feline gestation period

Note: Actual delivery may occur 2-3 days before or after the calculated date.

3. Understanding Feline Pregnancy

Details: Cat pregnancy progresses through three trimesters. Key milestones include:

• Days 15-18: Nipples become pink and enlarged
• Days 21-28: Pregnancy can be confirmed by ultrasound
• Days 35-49: Abdomen visibly enlarges
• Days 58-67: Nesting behavior begins

4. Using the Calculator

Tips: Enter the known or estimated breeding date. For multiple matings, use the last breeding date as sperm can survive several days in the female reproductive tract.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the 65-day calculation?
A: While 65 days is average, normal gestation ranges from 63-67 days. First-time mothers often deliver closer to 67 days.

Q2: Can I determine litter size with this calculator?
A: No, this only estimates due date. Litter size (typically 4-6 kittens) requires veterinary examination or imaging.

Q3: When should I take my cat to the vet?
A: Schedule a vet visit 3-4 weeks post-breeding for confirmation and health assessment.

Q4: What are signs of impending labor?
A: Nesting behavior, temperature drop (below 100°F), loss of appetite, and restlessness typically occur 24 hours before birth.

Q5: Should I adjust care during pregnancy?
A: Yes. Provide high-quality kitten food in weeks 6-9, ensure quiet nesting areas, and limit stress.