Dog Pregnancy Calculator

Dog Pregnancy Guides & Articles

Plain-English guides for the whole journey — from the first signs and the confirmation visit to the temperature drop and the first week with puppies. Every guide is built on the same veterinary facts as the dog pregnancy calculator.

Pregnant dog lying on a rug at home while her owner reads a dog pregnancy guide
Dog pregnancy week-by-week chart summarizing all nine weeks from fertilization to the due date at day 63Dog Pregnancy Week by WeekAll 9 weeks with pictures: development milestones, what you will see, vet checkpoints — plus the free printable PDF chart.Close view of a dog in early pregnancy showing enlarged, pinker nipples, one of the first physical signs of pregnancySigns of Dog PregnancyThe stage-by-stage signs — early appetite and behavior changes, mid-pregnancy weight gain, late nesting and milk — and why signs alone never prove it.Pregnant dog resting at home with a simple 63-day gestation timeline shown beside herHow Long Are Dogs Pregnant?About 63 days from ovulation, 58–68 from mating — and about two months, not nine weeks exactly. The full answer, with the breed myth cleared up.Dog showing false pregnancy behavior, curled protectively around a stuffed toy she is motheringFalse Pregnancy in DogsNesting, milk and mothering toys without a single puppy. Why pseudopregnancy happens, how long it lasts, and when your dog needs a vet.Flat lay of whelping supplies: clean towels, sterile gloves, sterilized scissors, bulb syringe, scale and puppy milk replacerWhelping Preparation ChecklistEverything ready by day 58: the whelping box, every supply, the day-56 temperature routine and the numbers to have written down.Veterinarian gently palpating a dog's abdomen during a pregnancy check at around day 30How to Tell If Your Dog Is PregnantPalpation, ultrasound, the relaxin blood test and X-ray compared — when each works, what each tells you, and the truth about home test kits.Restless pregnant dog digging and rearranging bedding in her whelping box at the start of laborDog Labor SignsThe temperature drop and the stage 1 signs that say whelping is 12–24 hours away — and the false alarms that send owners to the phone too early.Diagram of the three stages of dog labor: stage 1 restlessness, stage 2 delivering puppies, stage 3 delivering placentasStages of Dog LaborStage 1, 2 and 3 explained with normal timings — and the points at which normal stops being normal and the vet gets a call.Pregnant dog eating a bowl of high-quality puppy food, recommended from week 5 of pregnancy onwardPregnant Dog Care GuideFeeding by stage, safe exercise, the vet visit schedule, deworming — and the supplements and medications to keep away from her.Chart of a dog's temperature across the final week of pregnancy, showing the drop below 99 degrees Fahrenheit before laborDog Temperature Drop Before WhelpingHow to take her temperature, what her baseline should look like from day 56, and exactly what to do in the 24 hours after the drop.Diagram of the three trimesters of dog pregnancy, each about three weeks, from embryos to full-term puppiesDog Pregnancy StagesThe three trimesters walked through: what develops in each, which vet checks belong where, and what changes you will see.Litter of newborn puppies nursing from their mother in the whelping box during their first week of lifeNewborn Puppy Care: First WeekWarmth, nursing, daily weights and the fading-puppy warning signs — the first-week routine that keeps a new litter thriving.Diagram explaining the four stages of a dog's heat cycle and how long each stage typically lastsDog Heat Cycle StagesProestrus, estrus, diestrus and anestrus — how long each lasts, the signs, first-heat timing by size, and when breeding can happen.Veterinarian examining a pregnant dog during an urgent check after her owner noticed warning signsWhen to Call the VetThe red flags that cannot wait: day 68 with no labor, green discharge, straining with no puppy, bleeding — and how to be ready before they happen.Size comparison of pregnant dogs from toy, small, medium, large and giant breeds, all with the same 63-day gestationDog Pregnancy by BreedGestation is 63 days for every breed — honestly. What actually changes with size: litter numbers, monitoring and whelping notes.Diagram showing why a dog's due date is a window: 63 days from ovulation spreading to 58 to 68 days from the mating dateDog Due Date AccuracyHow exact is the 63-day date? The factors that spread it, the ones that narrow it, and what to actually plan your life around.Small toy-breed dog in late pregnancy resting in a whelping box sized for a small litterSmall Dog PregnancyThe same calculator, plus the small-dog differences: tiny litters, singletons, feeding reserves and closer whelping supervision.

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Dates first, reading second: the dog pregnancy calculator turns a mating date into a due date and a dated week-by-week chart, and the canine pregnancy calendar gives you every day of the pregnancy on one page. The guides above then explain whatever the dates raise.