GlenCalc

Dog and cat pregnancy calculator

Dogs and cats are pregnant for about nine weeks. Counting from breeding is less exact than from ovulation, so expect birth anywhere in the range.

Your answer

Due dateMonday, January 4, 2027
Usual rangeDecember 30, 2026 to January 9, 2027
Ultrasound can confirm from aboutNovember 27, 2026
X-ray can count babies from aboutDecember 17, 2026
  • Call your vet if labor starts well before the range, or nothing has happened by its end.

Worked out in your browser. Nothing you type is sent to a server.

How we worked it out

Updated as you change the numbers.

  1. Dog pregnancy: about 63 days from breeding (58–68).

Method and assumptions

Average gestation is about 63 days in dogs and 63 to 65 days in cats. Breeding can happen days before or after ovulation, which is why the range is wide.

Questions

When is a dog bred on November 2, 2026 due?

Around January 4, 2027, usually between December 30 and January 9.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

Embed this calculator on your site

Free to use. Paste this where you want the calculator; it runs in your visitors’ browsers, sets no cookies and never sends us anything your visitors type.

Related calculators