Reference

Dog & Cat Pregnancy Tracker with Milestones

Enter the breeding date and see all standard gestational milestones for dogs and cats, from implantation through expected whelping / queening.

Species

Breeding / mating date

Frequently asked questions

How early can I confirm a pregnancy on ultrasound?

Around day 22-24 from mating in dogs and day 21-22 in cats. Cardiac activity is the first reliable confirmation of viability.

When do fetal bones show up on radiographs?

Around day 42-45 in dogs and day 40-42 in cats. Radiographs become useful for counting fetuses around day 50-55 to plan for whelping or queening.

When does the pre-partum temperature drop happen?

In dogs, rectal temperature drops below 37.2 °C (99 °F) approximately 12-24 hours before whelping. It's not a perfect predictor but is a useful heads-up if you can monitor the bitch closely.

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Dog & Cat Pregnancy Tracker with Milestones

Enter the breeding date and see all standard gestational milestones for dogs and cats, from implantation through expected whelping / queening.

Species

Breeding / mating date

Frequently asked questions

How early can I confirm a pregnancy on ultrasound?

Around day 22-24 from mating in dogs and day 21-22 in cats. Cardiac activity is the first reliable confirmation of viability.

When do fetal bones show up on radiographs?

Around day 42-45 in dogs and day 40-42 in cats. Radiographs become useful for counting fetuses around day 50-55 to plan for whelping or queening.

When does the pre-partum temperature drop happen?

In dogs, rectal temperature drops below 37.2 °C (99 °F) approximately 12-24 hours before whelping. It's not a perfect predictor but is a useful heads-up if you can monitor the bitch closely.