What it does
- Calculates a due date from a mating date, first and last mating, ovulation date, LH peak or diestrus day 1, and shows how accurate each is.
- Builds a day-by-day calendar you can add to your phone or print.
- Shows breed notes: typical litter size and C-section risk for over 200 breeds.
- Adds guides and tools for the weeks around pregnancy: temperature log, litter size, heat cycle and more.
Who it is for
First-time owners who want to know what is normal, and breeders who want precise dating from ovulation. It does not replace your vet, who knows your dog.
How we try to be accurate
Dates follow the standard gestation figures for each dating method, and breed figures come from the published studies listed on each page. See our editorial standards for how we source and correct content, and the terms of use for the veterinary disclaimer.