Free tools
Breeder tools, on the house
Litter due-date calculator
Estimated due date (day 63)
Jan 10, 2027
Window: Jan 5, 2027 – Jan 15, 2027
- Day 28: Ultrasound to confirm pregnancyDec 6, 2026
- Day 45: X-ray for puppy countDec 23, 2026
- Day 56: Set up whelping box, start tempsJan 3, 2027
- Day 61: Plan C-section with your vet if neededJan 8, 2027
Color genetics predictor
Sire
Dam
Black37.5%
Blue37.5%
Chocolate12.5%
Lilac12.5%
Simplified model. Confirm genotypes with a DNA color panel.