Backed by published veterinary & nutrition research (see References below) · Updated July 11, 2026 · 7 min read
Canine gestation lasts roughly 63 days from ovulation, though whelping can occur anywhere from day 58 to day 68.
Fertilized eggs implant around day 17–21. There are usually no visible physical signs yet. This is the ideal window to begin a prenatal multivitamin with folic acid.
A veterinarian can typically confirm pregnancy via ultrasound around day 25–35. Abdominal enlargement usually becomes noticeable by week 5.
Puppies gain most of their birth weight in the final two weeks. Appetite typically increases 25–50% above baseline.
A drop in rectal temperature below 100°F (37.8°C) typically precedes labor by 12–24 hours.
Nutritional demands peak during lactation. Continue prenatal-grade nutrition through the full nursing period.
Canine gestation typically lasts about 63 days from ovulation, with a normal whelping window of roughly day 58 to day 68.
Most veterinarians recommend starting 2–4 weeks before a planned breeding and continuing through the full nursing period.
