Dog pregnancy calculator

Dogs are pregnant for about 63 days (9 weeks), though birth can happen any time from 56 to 72 days after mating.

If she was mated more than once, use the first date.

Due dateTue, 22 Dec 2026
Earliest (day 56)
Tue, 15 Dec 2026
Latest (day 72)
Thu, 31 Dec 2026
Vet can confirm from
Sat, 14 Nov 2026
Days pregnant today
0
Days to go
63

She is about 0 weeks and 0 days into a typical 63-day pregnancy.

A guide only. Your vet can give a more accurate due date with a scan, especially if mating dates are uncertain.

Dog pregnancy week by week

Key dates counted from mating.

DayWhat to know
Day 1Mating. Count from here.
From day 25A vet can confirm pregnancy with a scan or blood test.
Weeks 3 to 5A vet may be able to feel the puppies, though this is less reliable than a scan.
Day 56Earliest usual time for birth. Have the whelping area ready.
Day 63Typical due date.
Day 72Latest usual time. Contact your vet if she hasn’t given birth.

How we calculate this

The PDSA says dog pregnancies last about 63 days, and can vary from 56 to 72 days. We add these to your mating date.

Counting from mating isn’t exact, because eggs and sperm can survive for several days. That is why the range is wide, and why a vet scan gives a better estimate.

Due date = mating date + 63 daysEarliest = mating date + 56 days; latest = mating date + 72 daysVet can confirm from = mating date + 25 days

Questions people ask

How long are dogs pregnant for?

About 63 days, or 9 weeks. The PDSA says it can range from 56 to 72 days.

When can a vet tell if my dog is pregnant?

From around 25 days after mating, using a scan or blood test. A vet may be able to feel puppies between three and five weeks, but that is less reliable.

What should I do if my dog goes past her due date?

Contact your vet if she reaches day 72 without giving birth, or straight away if she seems unwell, is straining without producing a puppy, or you are worried at any point.

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