Dog Pregnancy Calculator

Estimated Due Date:

Earliest Possible Date:

Latest Possible Date:

Notice:

1. What is Dog Pregnancy?

Definition: Dog pregnancy (gestation) is the period from mating to labor, averaging 63 days but ranging from 58 to 68 days.

Purpose: This calculator predicts your dog’s due date to help you prepare for the arrival of puppies.

2. How Does the Calculator Work?

The calculator estimates your dog’s due date using this formula:

\[ \text{Due Date} = \text{Mating Date} + 63 \, \text{days} \]

Explanation: The average gestation period for dogs is approximately 63 days (about 2 months). However, nature varies, so labor can occur between 58 and 68 days after mating. The calculator also provides the day of the week for the due date.

3. Signs of Dog Pregnancy

Indicators: Look for increased appetite and weight gain (after 3-4 weeks), possible anemia, elevated white blood cells (lab tests), and nesting behavior near labor. False pregnancies are common in dogs.

4. Preparing for Labor

Tips: Prepare a safe, quiet whelping area by week 8. Near labor, expect a temperature drop (1.8°F), rapid breathing, and increased thirst. Labor may last 12-60 hours—have formula ready for pups if needed.

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