In this guide
The breeding went well, the waiting has started, and now every yawn and extra nap feels like a clue. If you are wondering exactly when to expect puppies, you are asking the right question at the right time.
The answer to how long are dogs pregnant is short. The useful part is everything around it: which day to count from, what changes each week, when a vet can confirm the litter, and which breeds need a different birth plan. This guide covers all of it, with a canine whelping calculator you can use right on this page.
If you are still at the planning stage, start with Petsfindly's dog breeding guide and our explainer on why breeding windows are strict on purpose.
Key takeaways
63 days from ovulation
From mating, a normal pregnancy runs 58 to 72 days, so ovulation timing gives the sharpest due date.
Confirm by day 25
Ultrasound or a relaxin blood test can confirm pregnancy from around day 25.
Feed later, not more
Food only needs to rise in the final weeks, and calcium supplements are best avoided.
Breed shapes the birth
Bulldogs and other flat-faced breeds often need a planned C-section, so time it with your vet.
How Long Are Dogs Pregnant?
About 63 days, but the day you start counting changes the math
A dog's pregnancy lasts about 62 to 64 days from ovulation, which is why you will see "63 days" quoted everywhere. The American Kennel Club puts it at roughly two months, and that matches what most owners experience.
The catch is that very few people know the exact day their dog ovulated. Most know the day she was bred. According to the Merck Veterinary Manual, gestation counted from the first day a female accepts breeding can range from 58 to 72 days. That two-week spread is not a sign of anything wrong. Sperm can stay viable in the reproductive tract for seven days or more, so the mating date and the conception date are often several days apart.

How the due date changes with your starting point
Counting from | Typical days to whelping | How precise it is |
|---|---|---|
Ovulation | 62 to 64 days | Very precise. Needs progesterone testing during her heat. |
LH surge or first progesterone rise | 64 to 66 days | Very precise. The surge comes about two days before ovulation. |
First day of diestrus | 56 to 58 days | Precise, but the date is confirmed afterward by vaginal cytology. |
First mating | 58 to 72 days | A two-week window. Fine for planning, weak for scheduling surgery. |
Dog Pregnancy Week by Week
What changes inside her, and what you should be doing
Early pregnancy is quiet. Many dogs look and act completely normal for the first three or four weeks, which is why owners searching for week-by-week signs often feel they are missing something. Here is the timeline counted from ovulation, so add a few days of wiggle room if you only know the mating date.
1Weeks 1 to 2: fertilization
Eggs are fertilized and the early embryos travel toward the uterus. There is nothing to see yet. Some vets suggest skipping strenuous exercise during these first two weeks to give implantation the best chance, so swap long runs for calm walks.
2Week 3: implantation
The embryos attach to the lining of the uterus at about 15 to 18 days. A few dogs go off their food or vomit briefly around now because of hormone changes. It usually passes within a few days, but call your vet if she stops eating for longer.
3Week 4: time to confirm
This is the first point where a vet can give you a real answer. An ultrasound from about day 25 can show heartbeats, and a relaxin blood test works from around the same time. By the end of the first month, a fetal heartbeat is usually detectable.
4Weeks 5 to 6: visible changes
Her belly starts to round out, her nipples grow larger and she may seem hungrier or more affectionate. The AKC notes that vets often start a fenbendazole deworming course in the third trimester, at about day 40, to protect the puppies from roundworms and hookworms. Ask your vet before giving any medication.
5Week 7: feeding steps up
Now the puppies grow fast and her calorie needs climb. Increase her food gradually over the coming weeks and split it into smaller, more frequent meals. Keep walks shorter and gentler.
6Week 8: count and nest
An x-ray from about day 55 shows the puppies' skeletons and gives the most accurate count, so you will know when the last one has arrived. Set up the whelping box now and let her sleep in it so she accepts it as her spot.
7Week 9: whelping
Her rectal temperature, normally 100 to 102.5°F, usually drops to 99°F or lower about 8 to 24 hours before labor. She may pace, pant, dig at her bedding and refuse food. Puppies typically arrive around day 63 from ovulation.
How Do You Confirm a Dog Is Pregnant?
Four vet tools, each with its own best moment
Physical signs are unreliable on their own. A false pregnancy can produce a swollen belly, enlarged nipples and even nesting behavior, so the only way to know for sure is a vet visit. The right test depends on how far along she is and what you want to learn.
Ways to confirm a dog pregnancy
Method | Best timing | What it tells you |
|---|---|---|
Ultrasound | About day 25 to 35 | Confirms pregnancy, shows heartbeats and gives a rough litter estimate. |
Relaxin blood test | About day 25 to 30 | Confirms pregnancy, since relaxin is only produced when she is pregnant. |
Abdominal palpation | About day 28 to 30 | A vet may feel small fluid sacs. Leave this to a professional. |
X-ray | Day 55 or later | The most accurate puppy count, once skeletons are visible. |
Most owners book an ultrasound in week four and an x-ray in week eight. Together, ultrasound and x-ray answer the two big questions: is she pregnant, and how many puppies should you expect?
Pregnancy Timeline by Breed
The calendar barely moves; the birth plan does
Here is the part that surprises people: there is no special clock for each breed. A Chihuahua and a Great Dane both carry for about 63 days from ovulation. The Merck Veterinary Manual notes that breed, the number of previous litters and litter size can shift the date slightly, but none of them rewrite the timeline. What does change by breed is the size of the litter, the risk of a difficult birth, and whether your vet will plan a C-section.
Pregnancy length and planning notes for popular breeds
Breed | Pregnancy length | What to plan for |
|---|---|---|
German Shepherd | About 63 days from ovulation | A roomy whelping box and a vet who can see her through a large litter. |
Pug | About 63 days from ovulation | A flat-faced breed, so discuss a C-section plan early. |
Cane Corso | About 63 days from ovulation | Space, sturdy bedding and close monitoring of a big, heavy mother. |
Pomeranian | About 63 days from ovulation | Small litters and a higher risk of milk fever after birth. |
Doberman | About 63 days from ovulation | Standard large-breed care with a precise due date from progesterone tests. |
English Bulldog | About 63 days from ovulation | Most litters are delivered by planned C-section. |
Gestation period of German Shepherd dogs
The gestation period for German Shepherd dogs is the same as for any other breed, about 63 days from ovulation and 58 to 72 days from the first mating. Because Shepherds are big dogs that can carry sizable litters, plan for a whelping box she can stretch out in fully and keep your vet's after-hours number handy. If you searched for the gestation period of German Shepherd mothers because you are planning a litter, the German Shepherd breed page shows breeding partners near you.
How long is a Pug pregnant?
If you are asking how long is a pug pregnant, the answer is about 63 days from ovulation, just like other dogs. Is your pug dog pregnant for the first time? Then the bigger question is the birth. Pugs are brachycephalic, meaning flat-faced, and in a large UK Kennel Club survey published in the Journal of Small Animal Practice, about a quarter of Pug litters were born by C-section. So when people ask how long are pugs pregnant, the honest follow-up is: long enough that you should agree on a delivery plan with your vet well before week nine. See Pugs on Petsfindly.
How long are Cane Corsos pregnant?
Owners often ask how long are cane corsos pregnant because these dogs are so large, but size does not stretch the calendar. A cane corso pregnancy follows the same 63-day pattern from ovulation. The practical work is space and safety: a heavy mother needs a whelping box with rails so puppies are not accidentally crushed, plus help on hand during delivery.
Pom pregnancy: small dog, careful plan
A Pom pregnancy lasts about 63 days too. Toy breeds tend to have small litters, and VCA Animal Hospitals lists Pomeranians among the small breeds at higher risk of eclampsia, a dangerous drop in blood calcium that usually strikes while she is nursing. Know the warning signs before the puppies arrive. Browse Pomeranians on Petsfindly.
How long is a Doberman pregnant?
Searching how long is a doberman pregnant or how long are dobermans pregnant leads to the same answer: about 63 days from ovulation. Dobermans have no unusual pregnancy timeline, so the best thing you can do is pin down the due date with progesterone results and follow standard large-breed care. Find partners on the Doberman Pinscher page.
How long are English Bulldogs pregnant?
So, how long are english bulldogs pregnant? About 63 days from ovulation, but Bulldogs are the breed where precise timing matters most. In the same Kennel Club survey, more than 80 percent of Bulldog litters were delivered by C-section, largely because of the puppies' big heads and the mother's narrow pelvis. The Merck Veterinary Manual notes that an elective C-section is safe after day 62 of gestation, when the puppies' lungs are ready, so knowing the ovulation date protects the whole litter. See Bulldogs on Petsfindly.
Canine Whelping Calculator and Calendar
Enter one date and get her whole pregnancy mapped out
Use this canine whelping calculator to turn a single date into a due window and a full canine whelping calendar. Choose the date you know best. Ovulation dates from progesterone testing give the tightest window, and a mating date gives a wider one.
Treat the result as a planning guide, not a promise. Your vet's scans and her temperature in the final days will tell you more than any calendar.
What Should a Pregnant Dog Eat?
Steady for six weeks, then more food in small meals
Good nutrition in pregnancy is mostly about timing. The AKC's pregnancy care guide says a healthy dog on a quality diet needs no change for the first two thirds of pregnancy, and that feeding more too early can do harm by adding fat she will have to carry through labor.
In the last few weeks, raise her food gradually until she is eating about 35 to 50 percent more than usual by the time she whelps. Her belly is crowded by then, so several small meals work better than two big ones. Ask your vet whether she should move onto a puppy or growth formula for the final stretch.
Keep her active with gentle, regular walks unless your vet says otherwise, and follow your vet's parasite plan rather than reaching for products on your own.
How Do You Prepare for Whelping?
Set up early so day 63 feels calm, not chaotic
Solid whelping prep starts around week seven. Put a whelping box in a quiet, warm room away from household traffic, with sides high enough to keep puppies in and low enough for her to step over. Line it with washable bedding, and gather clean towels, a digital thermometer, a heat source for the puppies, a scale and your vet's emergency number.
In the final week, take her rectal temperature twice a day so you know her normal. When it drops to 99°F or lower, labor usually follows within a day. A normal whelping often lasts about as many hours as there are puppies, with rest breaks between them.
When to call your vet during whelping
What you notice | Why it matters | What to do |
|---|---|---|
Temperature dropped more than 24 hours ago, no labor | Labor may have stalled | Call your vet |
Strong contractions for 2 hours with no puppy | A puppy may be stuck | Call your vet right away |
More than 2 hours between puppies | Possible exhaustion or blockage | Call your vet |
Water sac visible for an hour with no puppy | Delivery is not progressing | Call your vet |
Past the end of her due window | The litter may be overdue | Book an urgent exam |
Panting, trembling or stiffness while nursing | Possible eclampsia | Remove puppies, go to a vet now |
How Long Are Cats and Rabbits Pregnant?
Quick numbers for multi-pet households
Cats carry for about the same time as dogs. The Merck Veterinary Manual's gestation table lists about 65 days, and its whelping chapter puts it at 64 to 66 days from the hormone surge that mating triggers.
Rabbits are much faster, at about 31 days. That makes a bunny gestation calculator almost unnecessary: add a month to the mating date and have a nest box ready several days before. If you share your home with rabbits too, Petsfindly's rabbit section covers playmates and rehoming.
Frequently Asked Questions
Quick answers to what owners ask most
How long are dogs pregnant in weeks?
About nine weeks. In days, how long are dogs pregnant comes to about 63 days from ovulation, or 58 to 72 days from the first mating.
Can a dog give birth at 58 days?
If you are counting from the mating date, yes, 58 days can be normal because she may have conceived days later. Puppies born before about day 62 from ovulation can have immature lungs, so call your vet if labor starts much earlier than expected.
How soon can a vet tell if my dog is pregnant?
From about day 25. An ultrasound or a relaxin blood test can confirm it, and an x-ray from day 55 gives the best puppy count.
Does breed change how long a dog is pregnant?
Only slightly. Breed, litter size and previous litters can shift the date a little, but all breeds sit close to 63 days. Breed matters far more for the birth itself.
What is a canine whelping calendar?
A canine whelping calendar maps key dates from breeding to birth: when to confirm the pregnancy, when to increase food, when to book an x-ray and when to watch her temperature.
What if my dog goes past her due date?
Call your vet if she passes 72 days from the first mating, or 66 days from her LH surge, or if her temperature dropped more than 24 hours ago without labor.
The Bottom Line
Count from the right day, then plan for the breed
So, how long are dogs pregnant? About 63 days from ovulation, with a wider 58 to 72 day window if you only know the mating date. Confirm the pregnancy with your vet around day 25, hold her food steady until the final weeks, have the whelping box ready by week eight, and know which signs mean it is time to call for help.
Most of all, match the plan to the dog in front of you. A German Shepherd, a Pomeranian and an English Bulldog all carry for the same nine weeks, yet each one needs something different on delivery day.
When the puppies are ready
Help every puppy find the right home
Petsfindly's rehoming support and adopter matching connect your litter with phone-verified families who have shared what they are looking for, and your number stays private until you choose to share it.
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- Phone-verified owners
- We never take payments
Further reading
- American Kennel Club: Pregnant dog, signs and timeline
- American Kennel Club: Dog pregnancy care and prep
- Merck Veterinary Manual: Whelping and queening in dogs and cats
- Merck Veterinary Manual: Approximate gestation periods
- VCA Animal Hospitals: Eclampsia in dogs
- Evans and Adams (2010), Journal of Small Animal Practice: Proportion of litters of purebred dogs born by caesarean section
- Concannon, IVIS: Canine pregnancy, predicting parturition and timing events of gestation
This guide is general information for dog owners and is not veterinary advice. Every pregnancy is different, so talk to your veterinarian about your dog's care, due date and delivery plan.



