Track canine gestation stages and the expected whelping window.
Gestation is measured from ovulation rather than mating, and since sperm survive several days the mating date gives a wider window. Progesterone timing narrows the estimate considerably. Knowing the expected puppy count from a day 45 radiograph is what allows a whelping to be recognised as incomplete, which is a genuine emergency.
Dog Pregnancy
Gestation averages 63 days from ovulation, with a normal range of 58 to 68 days from mating
This is a general timeline, not veterinary care. Canine pregnancy and whelping can involve life-threatening complications including dystocia. Arrange veterinary supervision for any breeding, and seek immediate help if labour stalls or the animal appears distressed.
Gestation averages 63 days from ovulation, with a normal range of 58 to 68 days from mating Gestation is measured from ovulation rather than mating, and since sperm survive several days the mating date gives a wider window. Progesterone timing narrows the estimate considerably.
Knowing the expected puppy count from a day 45 radiograph is what allows a whelping to be recognised as incomplete, which is a genuine emergency.
This calculator takes 2 inputs: Days since mating, Expected gestation length. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.