How To Use

Enter the date of mating to calculate your dog's estimated due date, pregnancy week, and what to expect at each stage.

Quick Steps

1 Enter the Date of Mating (the date your dog was bred).
2 Click Calculate to see the due date and weekly pregnancy milestones.

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Dog Pregnancy Calculator

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FAQs

Frequently Asked Questions

How long are dogs pregnant?

Dogs are pregnant for approximately 63 days (9 weeks) from conception, with a normal range of 58–68 days. This is the canine gestation period. The variation in length depends on when fertilisation actually occurred relative to the mating date — fertilisation can happen up to 5 days after mating.

How long is the gestation period for dogs?

The canine gestation period is 58–68 days, with an average of 63 days (just over 9 weeks). Smaller breeds may deliver slightly earlier; larger breeds slightly later. If your dog has not delivered by day 70, contact your vet immediately.

How do I know if my dog is pregnant?

Early signs include reduced appetite or mild nausea around week 3, nipple enlargement and darkening, and increased affection or lethargy. By week 4–5 the abdomen begins to enlarge. A vet can confirm pregnancy via ultrasound as early as day 21–25.

How long is a dog pregnant week by week?

Week 1–2: fertilisation and cell division. Week 3: embryos implant in the uterus. Week 4: organ development begins — this is when ultrasound can first confirm pregnancy. Week 5–6: foetuses develop rapidly and abdomen grows visibly. Week 7–8: puppies gain weight quickly. Week 9: birth typically occurs around day 63.

When should I take my pregnant dog to the vet?

A vet visit at around week 3–4 is recommended to confirm pregnancy by ultrasound. A second visit at week 7–8 can assess litter size by X-ray. Contact your vet immediately if your dog shows signs of distress during labour.

What should I feed my pregnant dog?

From week 4–5 onward, transition your dog to a high-quality puppy food, which is more calorie-dense and higher in protein. Feed free-choice (ad libitum) from week 6. Fresh water should always be available.

What are the signs of labour in dogs?

Signs include a drop in rectal temperature below 99°F (37°C) within 24 hours of labour, restlessness, panting, nesting, and refusal to eat. Active contractions without a puppy after 30–60 minutes warrant an emergency vet call.

How many puppies will my dog have?

Litter size varies widely by breed and the mother's age. Small breeds typically have 1–4 puppies; large breeds 6–10 or more. A vet can estimate litter size by ultrasound at 4 weeks or by X-ray at 7–8 weeks.