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The Miracle of Life: Understanding Feline Pregnancy

Congratulations! Whether you are a professional breeder or a surprised pet owner, discovering that your cat is pregnant is the start of an exciting 9-week journey. Cats are remarkably self-sufficient mothers, but knowing exactly when to expect kittens is crucial for their safety and health. This calculator uses the standard feline gestation period to help you prepare.

How Long are Cats Pregnant?

The average gestation period for a domestic cat is 63 to 67 days (about 9 weeks).
However, a normal range can extend from 61 days to 72 days.
Premature: Kittens born before day 60 rarely survive without intensive veterinary intervention.
Overdue: If your cat goes beyond day 70 without showing signs of labor, consult a vet immediately.

The Stages of Cat Pregnancy: A Weekly Guide

Weeks 1-3: The Invisible Phase

For the first few weeks, you likely won't notice any changes. The embryos travel to the uterus and implant around day 12-14.
Sign: Around week 3, your cat's nipples may become pinker and larger (known as "pinking up"). This is often the first visible sign of pregnancy.

Weeks 4-6: The Growth Phase

The fetuses begin to grow rapidly. You might notice:
Weight Gain: The queen (mother cat) will start to look rounder.
Morning Sickness: Yes, cats get it too! Mild vomiting is normal, but meaningful loss of appetite is a concern.
Vet Visit: This is a great time for an ultrasound. A vet can often count heartbeats by day 25-30.

Weeks 7-9: Preparation for Labor

The kittens are fully formed and just growing fur and size.
Nesting Behavior: Your cat will start looking for a quiet, dark, safe place. Provide a "queening box" lined with towels in a secluded corner.
Movement: You might see the kittens moving (rippling) under her skin when she is lying down.
Appetite Changes: As the uterus presses on her stomach, she may eat smaller meals more frequently.

Signs of Labor (Queening)

When the big day arrives (around day 63-65), watch for:
1. Temperature Drop: Her rectal temperature may drop below 100°F (37.8°C) about 24 hours before labor.
2. Restlessness: Pacing, panting, and vocalizing (meowing loudly).
3. Grooming: Excessive licking of the genital area.
4. Contractions: Visible abdominal tightening followed by the birth of the first kitten.

Nutrition Tips

Pregnant and nursing cats need massive amounts of energy. Switch her to a high-quality Kitten Food starting in week 6. Kitten food is higher in calories, protein, and calcium, which she needs to produce milk without depleting her own body's reserves. Continue feeding this until the kittens are weaned.

When to Call the Vet