Dog gestation period 🐕
The gestation period for a dog typically ranges from 58 to 68 days, with an average of approximately 63 days. This can vary depending on breed, age, health, and litter size.
How to calculate the due date
Simply enter the breeding or mating date and this calculator will add the average gestation period to provide an estimated due date, along with the earliest and latest expected dates.
Stages of pregnancy
Fertilization (Days 1–7)
Sperm reaches eggs; fertilization occurs over several days.
Embryo Development (Days 8–21)
Embryos implant in the uterine wall. Early organ development begins.
Fetal Growth (Days 22–45)
Rapid growth phase. Puppies can be detected by ultrasound around day 25.
Pre-Whelping (Days 46–63)
Puppies are fully formed. Mother may start nesting behavior.
Fun facts 🐕
- The average canine litter size is 5–6 puppies, but varies greatly by breed.
- Larger breeds tend to have longer gestation periods.
- A dog's body temperature drops below 100°F (37.8°C) about 24 hours before labor.