Cat Pregnancy Calculation Formula:
Where:
DD = Due Date
OD = Ovulation Date
From: | To: |
The cat pregnancy due date calculation estimates when a pregnant cat will deliver her kittens based on the known ovulation date. The standard gestation period for cats is approximately 63 days from ovulation.
The calculator uses the simple formula:
Where:
Explanation: The calculation adds exactly 63 days to the known ovulation date to estimate the delivery date.
Details: Knowing the expected due date helps prepare for the birth, monitor the queen's health, and identify potential complications if delivery doesn't occur within the expected timeframe.
Tips: Enter the exact ovulation date (if known from veterinary monitoring) to get the most accurate due date estimation.
Q1: How accurate is the 63-day calculation?
A: While 63 days is average, normal gestation can range from 58-70 days from ovulation.
Q2: What if I don't know the exact ovulation date?
A: Without ovulation date, estimation is less precise. Mating dates can be used but are less accurate as cats can ovulate 24-48 hours after mating.
Q3: When should I prepare for birth?
A: Begin preparations about 1 week before the due date. Create a quiet nesting area and monitor the queen closely.
Q4: What are signs of impending labor?
A: Nesting behavior, appetite loss, temperature drop, and restlessness typically occur 24-48 hours before birth.
Q5: When should I call the vet?
A: If no kittens are born by day 70, if active labor lasts more than 4 hours without a kitten, or if you notice any distress.