Great Dane pregnancy
Great Dane pregnancy: gestation, litter size and C-section risk
Updated October 2026 · Information only, not veterinary advice
Step 1
What do you know?
Puppies are due
- Earliest, day 56
- Nov 24, 2026
- Latest, day 70
- Dec 8, 2026
A 14-day window, based on the mating date. Sperm can survive 5–7 days, so conception may be later than the tie.
Day 14 of 63 · week 2
22%
Breed profile
Great Dane
giant breed
- Average litter
- 9 puppies (6–15)
- C-section risk
- low
Worth knowing
- Very large litters require significant nutritional support
- Giant breeds may go 1-2 days past day 63
Temperature watch: take her temperature twice a day from day 56. A drop below 99.0°F (37.2°C) means labor within 12–24 hours.
Source: Borge et al., Theriogenology 2011 — 10,810 litters, 224 breeds.
Your calendar
Sixteen dates to put in the diary
Great Dane pregnancy at a glance
| Great Dane | |
|---|---|
| Gestation from ovulation | 63 to 64 days (63 days average) |
| Gestation from mating | 56 to 70 days |
| Typical litter | 9 puppies (range 6 to 15) |
| Size group | giant breed |
| C-section risk | Most whelp naturally |
Giant breed with very large litters. Gestation may run slightly past day 63.
Large litters, long deliveries
Big litters can tire the uterus, and puppies can be born with long pauses. Know the puppy count from an X-ray after day 50 so you can tell when she has finished.
Weight and nutrition
Giant breeds need a diet suited to their growth needs. Feed a high-quality diet recommended by your vet, increase portions gradually and avoid over-supplementing calcium, which can raise risks in giant breeds.
Plan transport in advance
A large dog is hard to move in an emergency. Plan how you would get her to the clinic and who will help, before labor starts.
What to watch for in Great Danes
- Very large litters require significant nutritional support
- Giant breeds may go 1-2 days past day 63
Dates to put in the diary
| When | What |
|---|---|
| Day 25 to 30 | Ultrasound to confirm pregnancy |
| Day 50 to 55 | X-ray to count puppies and check head size |
| From day 56 | Take her temperature twice a day |
| Day 63 | Expected due date from ovulation |
Add all of these to your phone with the whelping calendar, and track her temperature with the temperature log.
Call your vet now if…
- Green or black discharge before the first puppy is born.
- Strong straining for 30 to 60 minutes with no puppy.
- More than two to four hours between puppies when you know more are still inside.
- Tremors, stiffness, collapse or seizures at any point (possible low blood calcium).
Questions
Frequently asked questions
How long is a Great Dane pregnant?
Great Danes are pregnant for about 63 days from ovulation, and most whelp in 63 to 64 days. Counted from a mating date, the normal range is 56 to 70 days, because conception can happen days after mating. Use the calculator on this page to get a date range.
How many puppies can a Great Dane have?
A typical Great Dane litter is about 9 puppies, with a range of 6 to 15. First litters and litters from older dogs are often smaller. An abdominal X-ray after day 50 gives the actual count.
Does a Great Dane need a C-section?
Most Great Danes whelp naturally, but any dog can need help. Know your emergency vet before the due date.
What are the signs a Great Dane is pregnant?
Around three to four weeks you may notice a smaller appetite, pinker and larger nipples and a clear mucus discharge. Her belly grows from about week six. Confirm with an ultrasound at about day 25 to 30.
When should a pregnant Great Dane have an X-ray?
Between about day 50 and day 55. By then the puppies’ skeletons show, so your vet can count them and compare head size with her pelvis.
Keep reading
Related tools and guides
Due date from ovulation or LH peak
Narrow the window to about two days with progesterone or LH dating.
Litter size by breed
Typical litter size and C-section risk for 200+ breeds.
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What happens, what to feed and when to see the vet, weeks 1 to 9.
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