Find the day your dog was bred and read across for the expected whelping date and the normal window, about 58 to 68 days counted from breeding. For one litter, the dog pregnancy calculator also tracks days-to-go and the temperature-check reminder.
How to use this whelping calendar
Find the breeding month, then the breeding day. The bold date is the average whelping date, using the 63 day average from ovulation. Counted from breeding instead of ovulation, the normal window widens to about 58 to 68 days, because sperm can wait several days for ovulation.
Example. A dog bred on April 1 is due around Jun 3. Start twice-daily temperature checks from about May 27.
Why whelping dates vary
- Ovulation timing. A progesterone-timed ovulation date gives the tightest estimate. Without it, the breeding date alone leaves several days of uncertainty.
- Litter size. Very large or very small litters can shift the date by a day or two.
- Breed size. Average length is similar across breeds; litter size varies far more than duration.
Call your veterinarian for strong straining over 30 minutes without a puppy, more than 2 to 4 hours between puppies, or no labor 24 hours after her temperature drops.
Leap years
The chart uses a normal 365 day year. If February 29 falls between breeding and whelping, the real due date is one day earlier than listed. The calculator handles leap years automatically.
Dog pregnancy calendar by breeding month
Bred in January
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Jan 1 | Mar 5 | Feb 28 | Mar 10 |
| Jan 2 | Mar 6 | Mar 1 | Mar 11 |
| Jan 3 | Mar 7 | Mar 2 | Mar 12 |
| Jan 4 | Mar 8 | Mar 3 | Mar 13 |
| Jan 5 | Mar 9 | Mar 4 | Mar 14 |
| Jan 6 | Mar 10 | Mar 5 | Mar 15 |
| Jan 7 | Mar 11 | Mar 6 | Mar 16 |
| Jan 8 | Mar 12 | Mar 7 | Mar 17 |
| Jan 9 | Mar 13 | Mar 8 | Mar 18 |
| Jan 10 | Mar 14 | Mar 9 | Mar 19 |
| Jan 11 | Mar 15 | Mar 10 | Mar 20 |
| Jan 12 | Mar 16 | Mar 11 | Mar 21 |
| Jan 13 | Mar 17 | Mar 12 | Mar 22 |
| Jan 14 | Mar 18 | Mar 13 | Mar 23 |
| Jan 15 | Mar 19 | Mar 14 | Mar 24 |
| Jan 16 | Mar 20 | Mar 15 | Mar 25 |
| Jan 17 | Mar 21 | Mar 16 | Mar 26 |
| Jan 18 | Mar 22 | Mar 17 | Mar 27 |
| Jan 19 | Mar 23 | Mar 18 | Mar 28 |
| Jan 20 | Mar 24 | Mar 19 | Mar 29 |
| Jan 21 | Mar 25 | Mar 20 | Mar 30 |
| Jan 22 | Mar 26 | Mar 21 | Mar 31 |
| Jan 23 | Mar 27 | Mar 22 | Apr 1 |
| Jan 24 | Mar 28 | Mar 23 | Apr 2 |
| Jan 25 | Mar 29 | Mar 24 | Apr 3 |
| Jan 26 | Mar 30 | Mar 25 | Apr 4 |
| Jan 27 | Mar 31 | Mar 26 | Apr 5 |
| Jan 28 | Apr 1 | Mar 27 | Apr 6 |
| Jan 29 | Apr 2 | Mar 28 | Apr 7 |
| Jan 30 | Apr 3 | Mar 29 | Apr 8 |
| Jan 31 | Apr 4 | Mar 30 | Apr 9 |
Bred in February
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Feb 1 | Apr 5 | Mar 31 | Apr 10 |
| Feb 2 | Apr 6 | Apr 1 | Apr 11 |
| Feb 3 | Apr 7 | Apr 2 | Apr 12 |
| Feb 4 | Apr 8 | Apr 3 | Apr 13 |
| Feb 5 | Apr 9 | Apr 4 | Apr 14 |
| Feb 6 | Apr 10 | Apr 5 | Apr 15 |
| Feb 7 | Apr 11 | Apr 6 | Apr 16 |
| Feb 8 | Apr 12 | Apr 7 | Apr 17 |
| Feb 9 | Apr 13 | Apr 8 | Apr 18 |
| Feb 10 | Apr 14 | Apr 9 | Apr 19 |
| Feb 11 | Apr 15 | Apr 10 | Apr 20 |
| Feb 12 | Apr 16 | Apr 11 | Apr 21 |
| Feb 13 | Apr 17 | Apr 12 | Apr 22 |
| Feb 14 | Apr 18 | Apr 13 | Apr 23 |
| Feb 15 | Apr 19 | Apr 14 | Apr 24 |
| Feb 16 | Apr 20 | Apr 15 | Apr 25 |
| Feb 17 | Apr 21 | Apr 16 | Apr 26 |
| Feb 18 | Apr 22 | Apr 17 | Apr 27 |
| Feb 19 | Apr 23 | Apr 18 | Apr 28 |
| Feb 20 | Apr 24 | Apr 19 | Apr 29 |
| Feb 21 | Apr 25 | Apr 20 | Apr 30 |
| Feb 22 | Apr 26 | Apr 21 | May 1 |
| Feb 23 | Apr 27 | Apr 22 | May 2 |
| Feb 24 | Apr 28 | Apr 23 | May 3 |
| Feb 25 | Apr 29 | Apr 24 | May 4 |
| Feb 26 | Apr 30 | Apr 25 | May 5 |
| Feb 27 | May 1 | Apr 26 | May 6 |
| Feb 28 | May 2 | Apr 27 | May 7 |
Bred in March
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Mar 1 | May 3 | Apr 28 | May 8 |
| Mar 2 | May 4 | Apr 29 | May 9 |
| Mar 3 | May 5 | Apr 30 | May 10 |
| Mar 4 | May 6 | May 1 | May 11 |
| Mar 5 | May 7 | May 2 | May 12 |
| Mar 6 | May 8 | May 3 | May 13 |
| Mar 7 | May 9 | May 4 | May 14 |
| Mar 8 | May 10 | May 5 | May 15 |
| Mar 9 | May 11 | May 6 | May 16 |
| Mar 10 | May 12 | May 7 | May 17 |
| Mar 11 | May 13 | May 8 | May 18 |
| Mar 12 | May 14 | May 9 | May 19 |
| Mar 13 | May 15 | May 10 | May 20 |
| Mar 14 | May 16 | May 11 | May 21 |
| Mar 15 | May 17 | May 12 | May 22 |
| Mar 16 | May 18 | May 13 | May 23 |
| Mar 17 | May 19 | May 14 | May 24 |
| Mar 18 | May 20 | May 15 | May 25 |
| Mar 19 | May 21 | May 16 | May 26 |
| Mar 20 | May 22 | May 17 | May 27 |
| Mar 21 | May 23 | May 18 | May 28 |
| Mar 22 | May 24 | May 19 | May 29 |
| Mar 23 | May 25 | May 20 | May 30 |
| Mar 24 | May 26 | May 21 | May 31 |
| Mar 25 | May 27 | May 22 | Jun 1 |
| Mar 26 | May 28 | May 23 | Jun 2 |
| Mar 27 | May 29 | May 24 | Jun 3 |
| Mar 28 | May 30 | May 25 | Jun 4 |
| Mar 29 | May 31 | May 26 | Jun 5 |
| Mar 30 | Jun 1 | May 27 | Jun 6 |
| Mar 31 | Jun 2 | May 28 | Jun 7 |
Bred in April
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Apr 1 | Jun 3 | May 29 | Jun 8 |
| Apr 2 | Jun 4 | May 30 | Jun 9 |
| Apr 3 | Jun 5 | May 31 | Jun 10 |
| Apr 4 | Jun 6 | Jun 1 | Jun 11 |
| Apr 5 | Jun 7 | Jun 2 | Jun 12 |
| Apr 6 | Jun 8 | Jun 3 | Jun 13 |
| Apr 7 | Jun 9 | Jun 4 | Jun 14 |
| Apr 8 | Jun 10 | Jun 5 | Jun 15 |
| Apr 9 | Jun 11 | Jun 6 | Jun 16 |
| Apr 10 | Jun 12 | Jun 7 | Jun 17 |
| Apr 11 | Jun 13 | Jun 8 | Jun 18 |
| Apr 12 | Jun 14 | Jun 9 | Jun 19 |
| Apr 13 | Jun 15 | Jun 10 | Jun 20 |
| Apr 14 | Jun 16 | Jun 11 | Jun 21 |
| Apr 15 | Jun 17 | Jun 12 | Jun 22 |
| Apr 16 | Jun 18 | Jun 13 | Jun 23 |
| Apr 17 | Jun 19 | Jun 14 | Jun 24 |
| Apr 18 | Jun 20 | Jun 15 | Jun 25 |
| Apr 19 | Jun 21 | Jun 16 | Jun 26 |
| Apr 20 | Jun 22 | Jun 17 | Jun 27 |
| Apr 21 | Jun 23 | Jun 18 | Jun 28 |
| Apr 22 | Jun 24 | Jun 19 | Jun 29 |
| Apr 23 | Jun 25 | Jun 20 | Jun 30 |
| Apr 24 | Jun 26 | Jun 21 | Jul 1 |
| Apr 25 | Jun 27 | Jun 22 | Jul 2 |
| Apr 26 | Jun 28 | Jun 23 | Jul 3 |
| Apr 27 | Jun 29 | Jun 24 | Jul 4 |
| Apr 28 | Jun 30 | Jun 25 | Jul 5 |
| Apr 29 | Jul 1 | Jun 26 | Jul 6 |
| Apr 30 | Jul 2 | Jun 27 | Jul 7 |
Bred in May
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| May 1 | Jul 3 | Jun 28 | Jul 8 |
| May 2 | Jul 4 | Jun 29 | Jul 9 |
| May 3 | Jul 5 | Jun 30 | Jul 10 |
| May 4 | Jul 6 | Jul 1 | Jul 11 |
| May 5 | Jul 7 | Jul 2 | Jul 12 |
| May 6 | Jul 8 | Jul 3 | Jul 13 |
| May 7 | Jul 9 | Jul 4 | Jul 14 |
| May 8 | Jul 10 | Jul 5 | Jul 15 |
| May 9 | Jul 11 | Jul 6 | Jul 16 |
| May 10 | Jul 12 | Jul 7 | Jul 17 |
| May 11 | Jul 13 | Jul 8 | Jul 18 |
| May 12 | Jul 14 | Jul 9 | Jul 19 |
| May 13 | Jul 15 | Jul 10 | Jul 20 |
| May 14 | Jul 16 | Jul 11 | Jul 21 |
| May 15 | Jul 17 | Jul 12 | Jul 22 |
| May 16 | Jul 18 | Jul 13 | Jul 23 |
| May 17 | Jul 19 | Jul 14 | Jul 24 |
| May 18 | Jul 20 | Jul 15 | Jul 25 |
| May 19 | Jul 21 | Jul 16 | Jul 26 |
| May 20 | Jul 22 | Jul 17 | Jul 27 |
| May 21 | Jul 23 | Jul 18 | Jul 28 |
| May 22 | Jul 24 | Jul 19 | Jul 29 |
| May 23 | Jul 25 | Jul 20 | Jul 30 |
| May 24 | Jul 26 | Jul 21 | Jul 31 |
| May 25 | Jul 27 | Jul 22 | Aug 1 |
| May 26 | Jul 28 | Jul 23 | Aug 2 |
| May 27 | Jul 29 | Jul 24 | Aug 3 |
| May 28 | Jul 30 | Jul 25 | Aug 4 |
| May 29 | Jul 31 | Jul 26 | Aug 5 |
| May 30 | Aug 1 | Jul 27 | Aug 6 |
| May 31 | Aug 2 | Jul 28 | Aug 7 |
Bred in June
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Jun 1 | Aug 3 | Jul 29 | Aug 8 |
| Jun 2 | Aug 4 | Jul 30 | Aug 9 |
| Jun 3 | Aug 5 | Jul 31 | Aug 10 |
| Jun 4 | Aug 6 | Aug 1 | Aug 11 |
| Jun 5 | Aug 7 | Aug 2 | Aug 12 |
| Jun 6 | Aug 8 | Aug 3 | Aug 13 |
| Jun 7 | Aug 9 | Aug 4 | Aug 14 |
| Jun 8 | Aug 10 | Aug 5 | Aug 15 |
| Jun 9 | Aug 11 | Aug 6 | Aug 16 |
| Jun 10 | Aug 12 | Aug 7 | Aug 17 |
| Jun 11 | Aug 13 | Aug 8 | Aug 18 |
| Jun 12 | Aug 14 | Aug 9 | Aug 19 |
| Jun 13 | Aug 15 | Aug 10 | Aug 20 |
| Jun 14 | Aug 16 | Aug 11 | Aug 21 |
| Jun 15 | Aug 17 | Aug 12 | Aug 22 |
| Jun 16 | Aug 18 | Aug 13 | Aug 23 |
| Jun 17 | Aug 19 | Aug 14 | Aug 24 |
| Jun 18 | Aug 20 | Aug 15 | Aug 25 |
| Jun 19 | Aug 21 | Aug 16 | Aug 26 |
| Jun 20 | Aug 22 | Aug 17 | Aug 27 |
| Jun 21 | Aug 23 | Aug 18 | Aug 28 |
| Jun 22 | Aug 24 | Aug 19 | Aug 29 |
| Jun 23 | Aug 25 | Aug 20 | Aug 30 |
| Jun 24 | Aug 26 | Aug 21 | Aug 31 |
| Jun 25 | Aug 27 | Aug 22 | Sep 1 |
| Jun 26 | Aug 28 | Aug 23 | Sep 2 |
| Jun 27 | Aug 29 | Aug 24 | Sep 3 |
| Jun 28 | Aug 30 | Aug 25 | Sep 4 |
| Jun 29 | Aug 31 | Aug 26 | Sep 5 |
| Jun 30 | Sep 1 | Aug 27 | Sep 6 |
Bred in July
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Jul 1 | Sep 2 | Aug 28 | Sep 7 |
| Jul 2 | Sep 3 | Aug 29 | Sep 8 |
| Jul 3 | Sep 4 | Aug 30 | Sep 9 |
| Jul 4 | Sep 5 | Aug 31 | Sep 10 |
| Jul 5 | Sep 6 | Sep 1 | Sep 11 |
| Jul 6 | Sep 7 | Sep 2 | Sep 12 |
| Jul 7 | Sep 8 | Sep 3 | Sep 13 |
| Jul 8 | Sep 9 | Sep 4 | Sep 14 |
| Jul 9 | Sep 10 | Sep 5 | Sep 15 |
| Jul 10 | Sep 11 | Sep 6 | Sep 16 |
| Jul 11 | Sep 12 | Sep 7 | Sep 17 |
| Jul 12 | Sep 13 | Sep 8 | Sep 18 |
| Jul 13 | Sep 14 | Sep 9 | Sep 19 |
| Jul 14 | Sep 15 | Sep 10 | Sep 20 |
| Jul 15 | Sep 16 | Sep 11 | Sep 21 |
| Jul 16 | Sep 17 | Sep 12 | Sep 22 |
| Jul 17 | Sep 18 | Sep 13 | Sep 23 |
| Jul 18 | Sep 19 | Sep 14 | Sep 24 |
| Jul 19 | Sep 20 | Sep 15 | Sep 25 |
| Jul 20 | Sep 21 | Sep 16 | Sep 26 |
| Jul 21 | Sep 22 | Sep 17 | Sep 27 |
| Jul 22 | Sep 23 | Sep 18 | Sep 28 |
| Jul 23 | Sep 24 | Sep 19 | Sep 29 |
| Jul 24 | Sep 25 | Sep 20 | Sep 30 |
| Jul 25 | Sep 26 | Sep 21 | Oct 1 |
| Jul 26 | Sep 27 | Sep 22 | Oct 2 |
| Jul 27 | Sep 28 | Sep 23 | Oct 3 |
| Jul 28 | Sep 29 | Sep 24 | Oct 4 |
| Jul 29 | Sep 30 | Sep 25 | Oct 5 |
| Jul 30 | Oct 1 | Sep 26 | Oct 6 |
| Jul 31 | Oct 2 | Sep 27 | Oct 7 |
Bred in August
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Aug 1 | Oct 3 | Sep 28 | Oct 8 |
| Aug 2 | Oct 4 | Sep 29 | Oct 9 |
| Aug 3 | Oct 5 | Sep 30 | Oct 10 |
| Aug 4 | Oct 6 | Oct 1 | Oct 11 |
| Aug 5 | Oct 7 | Oct 2 | Oct 12 |
| Aug 6 | Oct 8 | Oct 3 | Oct 13 |
| Aug 7 | Oct 9 | Oct 4 | Oct 14 |
| Aug 8 | Oct 10 | Oct 5 | Oct 15 |
| Aug 9 | Oct 11 | Oct 6 | Oct 16 |
| Aug 10 | Oct 12 | Oct 7 | Oct 17 |
| Aug 11 | Oct 13 | Oct 8 | Oct 18 |
| Aug 12 | Oct 14 | Oct 9 | Oct 19 |
| Aug 13 | Oct 15 | Oct 10 | Oct 20 |
| Aug 14 | Oct 16 | Oct 11 | Oct 21 |
| Aug 15 | Oct 17 | Oct 12 | Oct 22 |
| Aug 16 | Oct 18 | Oct 13 | Oct 23 |
| Aug 17 | Oct 19 | Oct 14 | Oct 24 |
| Aug 18 | Oct 20 | Oct 15 | Oct 25 |
| Aug 19 | Oct 21 | Oct 16 | Oct 26 |
| Aug 20 | Oct 22 | Oct 17 | Oct 27 |
| Aug 21 | Oct 23 | Oct 18 | Oct 28 |
| Aug 22 | Oct 24 | Oct 19 | Oct 29 |
| Aug 23 | Oct 25 | Oct 20 | Oct 30 |
| Aug 24 | Oct 26 | Oct 21 | Oct 31 |
| Aug 25 | Oct 27 | Oct 22 | Nov 1 |
| Aug 26 | Oct 28 | Oct 23 | Nov 2 |
| Aug 27 | Oct 29 | Oct 24 | Nov 3 |
| Aug 28 | Oct 30 | Oct 25 | Nov 4 |
| Aug 29 | Oct 31 | Oct 26 | Nov 5 |
| Aug 30 | Nov 1 | Oct 27 | Nov 6 |
| Aug 31 | Nov 2 | Oct 28 | Nov 7 |
Bred in September
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Sep 1 | Nov 3 | Oct 29 | Nov 8 |
| Sep 2 | Nov 4 | Oct 30 | Nov 9 |
| Sep 3 | Nov 5 | Oct 31 | Nov 10 |
| Sep 4 | Nov 6 | Nov 1 | Nov 11 |
| Sep 5 | Nov 7 | Nov 2 | Nov 12 |
| Sep 6 | Nov 8 | Nov 3 | Nov 13 |
| Sep 7 | Nov 9 | Nov 4 | Nov 14 |
| Sep 8 | Nov 10 | Nov 5 | Nov 15 |
| Sep 9 | Nov 11 | Nov 6 | Nov 16 |
| Sep 10 | Nov 12 | Nov 7 | Nov 17 |
| Sep 11 | Nov 13 | Nov 8 | Nov 18 |
| Sep 12 | Nov 14 | Nov 9 | Nov 19 |
| Sep 13 | Nov 15 | Nov 10 | Nov 20 |
| Sep 14 | Nov 16 | Nov 11 | Nov 21 |
| Sep 15 | Nov 17 | Nov 12 | Nov 22 |
| Sep 16 | Nov 18 | Nov 13 | Nov 23 |
| Sep 17 | Nov 19 | Nov 14 | Nov 24 |
| Sep 18 | Nov 20 | Nov 15 | Nov 25 |
| Sep 19 | Nov 21 | Nov 16 | Nov 26 |
| Sep 20 | Nov 22 | Nov 17 | Nov 27 |
| Sep 21 | Nov 23 | Nov 18 | Nov 28 |
| Sep 22 | Nov 24 | Nov 19 | Nov 29 |
| Sep 23 | Nov 25 | Nov 20 | Nov 30 |
| Sep 24 | Nov 26 | Nov 21 | Dec 1 |
| Sep 25 | Nov 27 | Nov 22 | Dec 2 |
| Sep 26 | Nov 28 | Nov 23 | Dec 3 |
| Sep 27 | Nov 29 | Nov 24 | Dec 4 |
| Sep 28 | Nov 30 | Nov 25 | Dec 5 |
| Sep 29 | Dec 1 | Nov 26 | Dec 6 |
| Sep 30 | Dec 2 | Nov 27 | Dec 7 |
Bred in October
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Oct 1 | Dec 3 | Nov 28 | Dec 8 |
| Oct 2 | Dec 4 | Nov 29 | Dec 9 |
| Oct 3 | Dec 5 | Nov 30 | Dec 10 |
| Oct 4 | Dec 6 | Dec 1 | Dec 11 |
| Oct 5 | Dec 7 | Dec 2 | Dec 12 |
| Oct 6 | Dec 8 | Dec 3 | Dec 13 |
| Oct 7 | Dec 9 | Dec 4 | Dec 14 |
| Oct 8 | Dec 10 | Dec 5 | Dec 15 |
| Oct 9 | Dec 11 | Dec 6 | Dec 16 |
| Oct 10 | Dec 12 | Dec 7 | Dec 17 |
| Oct 11 | Dec 13 | Dec 8 | Dec 18 |
| Oct 12 | Dec 14 | Dec 9 | Dec 19 |
| Oct 13 | Dec 15 | Dec 10 | Dec 20 |
| Oct 14 | Dec 16 | Dec 11 | Dec 21 |
| Oct 15 | Dec 17 | Dec 12 | Dec 22 |
| Oct 16 | Dec 18 | Dec 13 | Dec 23 |
| Oct 17 | Dec 19 | Dec 14 | Dec 24 |
| Oct 18 | Dec 20 | Dec 15 | Dec 25 |
| Oct 19 | Dec 21 | Dec 16 | Dec 26 |
| Oct 20 | Dec 22 | Dec 17 | Dec 27 |
| Oct 21 | Dec 23 | Dec 18 | Dec 28 |
| Oct 22 | Dec 24 | Dec 19 | Dec 29 |
| Oct 23 | Dec 25 | Dec 20 | Dec 30 |
| Oct 24 | Dec 26 | Dec 21 | Dec 31 |
| Oct 25 | Dec 27 | Dec 22 | Jan 1 |
| Oct 26 | Dec 28 | Dec 23 | Jan 2 |
| Oct 27 | Dec 29 | Dec 24 | Jan 3 |
| Oct 28 | Dec 30 | Dec 25 | Jan 4 |
| Oct 29 | Dec 31 | Dec 26 | Jan 5 |
| Oct 30 | Jan 1 | Dec 27 | Jan 6 |
| Oct 31 | Jan 2 | Dec 28 | Jan 7 |
Bred in November
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Nov 1 | Jan 3 | Dec 29 | Jan 8 |
| Nov 2 | Jan 4 | Dec 30 | Jan 9 |
| Nov 3 | Jan 5 | Dec 31 | Jan 10 |
| Nov 4 | Jan 6 | Jan 1 | Jan 11 |
| Nov 5 | Jan 7 | Jan 2 | Jan 12 |
| Nov 6 | Jan 8 | Jan 3 | Jan 13 |
| Nov 7 | Jan 9 | Jan 4 | Jan 14 |
| Nov 8 | Jan 10 | Jan 5 | Jan 15 |
| Nov 9 | Jan 11 | Jan 6 | Jan 16 |
| Nov 10 | Jan 12 | Jan 7 | Jan 17 |
| Nov 11 | Jan 13 | Jan 8 | Jan 18 |
| Nov 12 | Jan 14 | Jan 9 | Jan 19 |
| Nov 13 | Jan 15 | Jan 10 | Jan 20 |
| Nov 14 | Jan 16 | Jan 11 | Jan 21 |
| Nov 15 | Jan 17 | Jan 12 | Jan 22 |
| Nov 16 | Jan 18 | Jan 13 | Jan 23 |
| Nov 17 | Jan 19 | Jan 14 | Jan 24 |
| Nov 18 | Jan 20 | Jan 15 | Jan 25 |
| Nov 19 | Jan 21 | Jan 16 | Jan 26 |
| Nov 20 | Jan 22 | Jan 17 | Jan 27 |
| Nov 21 | Jan 23 | Jan 18 | Jan 28 |
| Nov 22 | Jan 24 | Jan 19 | Jan 29 |
| Nov 23 | Jan 25 | Jan 20 | Jan 30 |
| Nov 24 | Jan 26 | Jan 21 | Jan 31 |
| Nov 25 | Jan 27 | Jan 22 | Feb 1 |
| Nov 26 | Jan 28 | Jan 23 | Feb 2 |
| Nov 27 | Jan 29 | Jan 24 | Feb 3 |
| Nov 28 | Jan 30 | Jan 25 | Feb 4 |
| Nov 29 | Jan 31 | Jan 26 | Feb 5 |
| Nov 30 | Feb 1 | Jan 27 | Feb 6 |
Bred in December
| Bred | Due (63 days) | Earliest (58) | Latest (68) |
|---|
| Dec 1 | Feb 2 | Jan 28 | Feb 7 |
| Dec 2 | Feb 3 | Jan 29 | Feb 8 |
| Dec 3 | Feb 4 | Jan 30 | Feb 9 |
| Dec 4 | Feb 5 | Jan 31 | Feb 10 |
| Dec 5 | Feb 6 | Feb 1 | Feb 11 |
| Dec 6 | Feb 7 | Feb 2 | Feb 12 |
| Dec 7 | Feb 8 | Feb 3 | Feb 13 |
| Dec 8 | Feb 9 | Feb 4 | Feb 14 |
| Dec 9 | Feb 10 | Feb 5 | Feb 15 |
| Dec 10 | Feb 11 | Feb 6 | Feb 16 |
| Dec 11 | Feb 12 | Feb 7 | Feb 17 |
| Dec 12 | Feb 13 | Feb 8 | Feb 18 |
| Dec 13 | Feb 14 | Feb 9 | Feb 19 |
| Dec 14 | Feb 15 | Feb 10 | Feb 20 |
| Dec 15 | Feb 16 | Feb 11 | Feb 21 |
| Dec 16 | Feb 17 | Feb 12 | Feb 22 |
| Dec 17 | Feb 18 | Feb 13 | Feb 23 |
| Dec 18 | Feb 19 | Feb 14 | Feb 24 |
| Dec 19 | Feb 20 | Feb 15 | Feb 25 |
| Dec 20 | Feb 21 | Feb 16 | Feb 26 |
| Dec 21 | Feb 22 | Feb 17 | Feb 27 |
| Dec 22 | Feb 23 | Feb 18 | Feb 28 |
| Dec 23 | Feb 24 | Feb 19 | Mar 1 |
| Dec 24 | Feb 25 | Feb 20 | Mar 2 |
| Dec 25 | Feb 26 | Feb 21 | Mar 3 |
| Dec 26 | Feb 27 | Feb 22 | Mar 4 |
| Dec 27 | Feb 28 | Feb 23 | Mar 5 |
| Dec 28 | Mar 1 | Feb 24 | Mar 6 |
| Dec 29 | Mar 2 | Feb 25 | Mar 7 |
| Dec 30 | Mar 3 | Feb 26 | Mar 8 |
| Dec 31 | Mar 4 | Feb 27 | Mar 9 |
Frequently asked questions
How long is a dog pregnant?
About 63 days from ovulation, or roughly 58 to 68 days counted from breeding.
How do I read a dog pregnancy calendar?
Find the breeding date in the left column. The bold column shows the average whelping date, with the earliest and latest normal dates either side.
Is the due date more accurate from ovulation or from breeding?
From ovulation, if your vet confirmed it with a progesterone test. Breeding date alone gives a wider normal window because mating and ovulation are not always the same day.
Sources
Calculators for this
Last updated November 10, 2026. Dates are averages with a normal window. How we check our data. Found an error? Tell us.