Find the day your cat mated and read across for the expected due date and the normal window, about 61 to 67 days. For one litter, the cat pregnancy calculator also tracks days-to-go and the nesting-box reminder.
How to use this due date calendar
Find the mating month, then the day. The bold date is the average due date, using the 64 day average. Cats ovulate from mating and often mate several times over a few days, so the start date can be uncertain by a day or two.
Example. A cat mated on June 1 is due around Aug 4. Set up a quiet nesting box from about Jul 29.
Why due dates vary
- Mating window. Cats often mate repeatedly over several days of a heat cycle, which blurs the exact start date.
- Litter size. Average litters are 4 to 6 kittens; larger litters can arrive a day or two early.
- First litters. Queens having their first litter sometimes vary more than experienced queens.
Call your veterinarian if she strains for more than 30 minutes without a kitten, or more than 2 hours pass between kittens.
Leap years
The chart uses a normal 365 day year. If February 29 falls between mating and birth, the real due date is one day earlier than listed. The calculator handles leap years automatically.
Cat pregnancy calendar by mating month
Bred in January
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Jan 1 | Mar 6 | Mar 3 | Mar 9 |
| Jan 2 | Mar 7 | Mar 4 | Mar 10 |
| Jan 3 | Mar 8 | Mar 5 | Mar 11 |
| Jan 4 | Mar 9 | Mar 6 | Mar 12 |
| Jan 5 | Mar 10 | Mar 7 | Mar 13 |
| Jan 6 | Mar 11 | Mar 8 | Mar 14 |
| Jan 7 | Mar 12 | Mar 9 | Mar 15 |
| Jan 8 | Mar 13 | Mar 10 | Mar 16 |
| Jan 9 | Mar 14 | Mar 11 | Mar 17 |
| Jan 10 | Mar 15 | Mar 12 | Mar 18 |
| Jan 11 | Mar 16 | Mar 13 | Mar 19 |
| Jan 12 | Mar 17 | Mar 14 | Mar 20 |
| Jan 13 | Mar 18 | Mar 15 | Mar 21 |
| Jan 14 | Mar 19 | Mar 16 | Mar 22 |
| Jan 15 | Mar 20 | Mar 17 | Mar 23 |
| Jan 16 | Mar 21 | Mar 18 | Mar 24 |
| Jan 17 | Mar 22 | Mar 19 | Mar 25 |
| Jan 18 | Mar 23 | Mar 20 | Mar 26 |
| Jan 19 | Mar 24 | Mar 21 | Mar 27 |
| Jan 20 | Mar 25 | Mar 22 | Mar 28 |
| Jan 21 | Mar 26 | Mar 23 | Mar 29 |
| Jan 22 | Mar 27 | Mar 24 | Mar 30 |
| Jan 23 | Mar 28 | Mar 25 | Mar 31 |
| Jan 24 | Mar 29 | Mar 26 | Apr 1 |
| Jan 25 | Mar 30 | Mar 27 | Apr 2 |
| Jan 26 | Mar 31 | Mar 28 | Apr 3 |
| Jan 27 | Apr 1 | Mar 29 | Apr 4 |
| Jan 28 | Apr 2 | Mar 30 | Apr 5 |
| Jan 29 | Apr 3 | Mar 31 | Apr 6 |
| Jan 30 | Apr 4 | Apr 1 | Apr 7 |
| Jan 31 | Apr 5 | Apr 2 | Apr 8 |
Bred in February
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Feb 1 | Apr 6 | Apr 3 | Apr 9 |
| Feb 2 | Apr 7 | Apr 4 | Apr 10 |
| Feb 3 | Apr 8 | Apr 5 | Apr 11 |
| Feb 4 | Apr 9 | Apr 6 | Apr 12 |
| Feb 5 | Apr 10 | Apr 7 | Apr 13 |
| Feb 6 | Apr 11 | Apr 8 | Apr 14 |
| Feb 7 | Apr 12 | Apr 9 | Apr 15 |
| Feb 8 | Apr 13 | Apr 10 | Apr 16 |
| Feb 9 | Apr 14 | Apr 11 | Apr 17 |
| Feb 10 | Apr 15 | Apr 12 | Apr 18 |
| Feb 11 | Apr 16 | Apr 13 | Apr 19 |
| Feb 12 | Apr 17 | Apr 14 | Apr 20 |
| Feb 13 | Apr 18 | Apr 15 | Apr 21 |
| Feb 14 | Apr 19 | Apr 16 | Apr 22 |
| Feb 15 | Apr 20 | Apr 17 | Apr 23 |
| Feb 16 | Apr 21 | Apr 18 | Apr 24 |
| Feb 17 | Apr 22 | Apr 19 | Apr 25 |
| Feb 18 | Apr 23 | Apr 20 | Apr 26 |
| Feb 19 | Apr 24 | Apr 21 | Apr 27 |
| Feb 20 | Apr 25 | Apr 22 | Apr 28 |
| Feb 21 | Apr 26 | Apr 23 | Apr 29 |
| Feb 22 | Apr 27 | Apr 24 | Apr 30 |
| Feb 23 | Apr 28 | Apr 25 | May 1 |
| Feb 24 | Apr 29 | Apr 26 | May 2 |
| Feb 25 | Apr 30 | Apr 27 | May 3 |
| Feb 26 | May 1 | Apr 28 | May 4 |
| Feb 27 | May 2 | Apr 29 | May 5 |
| Feb 28 | May 3 | Apr 30 | May 6 |
Bred in March
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Mar 1 | May 4 | May 1 | May 7 |
| Mar 2 | May 5 | May 2 | May 8 |
| Mar 3 | May 6 | May 3 | May 9 |
| Mar 4 | May 7 | May 4 | May 10 |
| Mar 5 | May 8 | May 5 | May 11 |
| Mar 6 | May 9 | May 6 | May 12 |
| Mar 7 | May 10 | May 7 | May 13 |
| Mar 8 | May 11 | May 8 | May 14 |
| Mar 9 | May 12 | May 9 | May 15 |
| Mar 10 | May 13 | May 10 | May 16 |
| Mar 11 | May 14 | May 11 | May 17 |
| Mar 12 | May 15 | May 12 | May 18 |
| Mar 13 | May 16 | May 13 | May 19 |
| Mar 14 | May 17 | May 14 | May 20 |
| Mar 15 | May 18 | May 15 | May 21 |
| Mar 16 | May 19 | May 16 | May 22 |
| Mar 17 | May 20 | May 17 | May 23 |
| Mar 18 | May 21 | May 18 | May 24 |
| Mar 19 | May 22 | May 19 | May 25 |
| Mar 20 | May 23 | May 20 | May 26 |
| Mar 21 | May 24 | May 21 | May 27 |
| Mar 22 | May 25 | May 22 | May 28 |
| Mar 23 | May 26 | May 23 | May 29 |
| Mar 24 | May 27 | May 24 | May 30 |
| Mar 25 | May 28 | May 25 | May 31 |
| Mar 26 | May 29 | May 26 | Jun 1 |
| Mar 27 | May 30 | May 27 | Jun 2 |
| Mar 28 | May 31 | May 28 | Jun 3 |
| Mar 29 | Jun 1 | May 29 | Jun 4 |
| Mar 30 | Jun 2 | May 30 | Jun 5 |
| Mar 31 | Jun 3 | May 31 | Jun 6 |
Bred in April
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Apr 1 | Jun 4 | Jun 1 | Jun 7 |
| Apr 2 | Jun 5 | Jun 2 | Jun 8 |
| Apr 3 | Jun 6 | Jun 3 | Jun 9 |
| Apr 4 | Jun 7 | Jun 4 | Jun 10 |
| Apr 5 | Jun 8 | Jun 5 | Jun 11 |
| Apr 6 | Jun 9 | Jun 6 | Jun 12 |
| Apr 7 | Jun 10 | Jun 7 | Jun 13 |
| Apr 8 | Jun 11 | Jun 8 | Jun 14 |
| Apr 9 | Jun 12 | Jun 9 | Jun 15 |
| Apr 10 | Jun 13 | Jun 10 | Jun 16 |
| Apr 11 | Jun 14 | Jun 11 | Jun 17 |
| Apr 12 | Jun 15 | Jun 12 | Jun 18 |
| Apr 13 | Jun 16 | Jun 13 | Jun 19 |
| Apr 14 | Jun 17 | Jun 14 | Jun 20 |
| Apr 15 | Jun 18 | Jun 15 | Jun 21 |
| Apr 16 | Jun 19 | Jun 16 | Jun 22 |
| Apr 17 | Jun 20 | Jun 17 | Jun 23 |
| Apr 18 | Jun 21 | Jun 18 | Jun 24 |
| Apr 19 | Jun 22 | Jun 19 | Jun 25 |
| Apr 20 | Jun 23 | Jun 20 | Jun 26 |
| Apr 21 | Jun 24 | Jun 21 | Jun 27 |
| Apr 22 | Jun 25 | Jun 22 | Jun 28 |
| Apr 23 | Jun 26 | Jun 23 | Jun 29 |
| Apr 24 | Jun 27 | Jun 24 | Jun 30 |
| Apr 25 | Jun 28 | Jun 25 | Jul 1 |
| Apr 26 | Jun 29 | Jun 26 | Jul 2 |
| Apr 27 | Jun 30 | Jun 27 | Jul 3 |
| Apr 28 | Jul 1 | Jun 28 | Jul 4 |
| Apr 29 | Jul 2 | Jun 29 | Jul 5 |
| Apr 30 | Jul 3 | Jun 30 | Jul 6 |
Bred in May
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| May 1 | Jul 4 | Jul 1 | Jul 7 |
| May 2 | Jul 5 | Jul 2 | Jul 8 |
| May 3 | Jul 6 | Jul 3 | Jul 9 |
| May 4 | Jul 7 | Jul 4 | Jul 10 |
| May 5 | Jul 8 | Jul 5 | Jul 11 |
| May 6 | Jul 9 | Jul 6 | Jul 12 |
| May 7 | Jul 10 | Jul 7 | Jul 13 |
| May 8 | Jul 11 | Jul 8 | Jul 14 |
| May 9 | Jul 12 | Jul 9 | Jul 15 |
| May 10 | Jul 13 | Jul 10 | Jul 16 |
| May 11 | Jul 14 | Jul 11 | Jul 17 |
| May 12 | Jul 15 | Jul 12 | Jul 18 |
| May 13 | Jul 16 | Jul 13 | Jul 19 |
| May 14 | Jul 17 | Jul 14 | Jul 20 |
| May 15 | Jul 18 | Jul 15 | Jul 21 |
| May 16 | Jul 19 | Jul 16 | Jul 22 |
| May 17 | Jul 20 | Jul 17 | Jul 23 |
| May 18 | Jul 21 | Jul 18 | Jul 24 |
| May 19 | Jul 22 | Jul 19 | Jul 25 |
| May 20 | Jul 23 | Jul 20 | Jul 26 |
| May 21 | Jul 24 | Jul 21 | Jul 27 |
| May 22 | Jul 25 | Jul 22 | Jul 28 |
| May 23 | Jul 26 | Jul 23 | Jul 29 |
| May 24 | Jul 27 | Jul 24 | Jul 30 |
| May 25 | Jul 28 | Jul 25 | Jul 31 |
| May 26 | Jul 29 | Jul 26 | Aug 1 |
| May 27 | Jul 30 | Jul 27 | Aug 2 |
| May 28 | Jul 31 | Jul 28 | Aug 3 |
| May 29 | Aug 1 | Jul 29 | Aug 4 |
| May 30 | Aug 2 | Jul 30 | Aug 5 |
| May 31 | Aug 3 | Jul 31 | Aug 6 |
Bred in June
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Jun 1 | Aug 4 | Aug 1 | Aug 7 |
| Jun 2 | Aug 5 | Aug 2 | Aug 8 |
| Jun 3 | Aug 6 | Aug 3 | Aug 9 |
| Jun 4 | Aug 7 | Aug 4 | Aug 10 |
| Jun 5 | Aug 8 | Aug 5 | Aug 11 |
| Jun 6 | Aug 9 | Aug 6 | Aug 12 |
| Jun 7 | Aug 10 | Aug 7 | Aug 13 |
| Jun 8 | Aug 11 | Aug 8 | Aug 14 |
| Jun 9 | Aug 12 | Aug 9 | Aug 15 |
| Jun 10 | Aug 13 | Aug 10 | Aug 16 |
| Jun 11 | Aug 14 | Aug 11 | Aug 17 |
| Jun 12 | Aug 15 | Aug 12 | Aug 18 |
| Jun 13 | Aug 16 | Aug 13 | Aug 19 |
| Jun 14 | Aug 17 | Aug 14 | Aug 20 |
| Jun 15 | Aug 18 | Aug 15 | Aug 21 |
| Jun 16 | Aug 19 | Aug 16 | Aug 22 |
| Jun 17 | Aug 20 | Aug 17 | Aug 23 |
| Jun 18 | Aug 21 | Aug 18 | Aug 24 |
| Jun 19 | Aug 22 | Aug 19 | Aug 25 |
| Jun 20 | Aug 23 | Aug 20 | Aug 26 |
| Jun 21 | Aug 24 | Aug 21 | Aug 27 |
| Jun 22 | Aug 25 | Aug 22 | Aug 28 |
| Jun 23 | Aug 26 | Aug 23 | Aug 29 |
| Jun 24 | Aug 27 | Aug 24 | Aug 30 |
| Jun 25 | Aug 28 | Aug 25 | Aug 31 |
| Jun 26 | Aug 29 | Aug 26 | Sep 1 |
| Jun 27 | Aug 30 | Aug 27 | Sep 2 |
| Jun 28 | Aug 31 | Aug 28 | Sep 3 |
| Jun 29 | Sep 1 | Aug 29 | Sep 4 |
| Jun 30 | Sep 2 | Aug 30 | Sep 5 |
Bred in July
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Jul 1 | Sep 3 | Aug 31 | Sep 6 |
| Jul 2 | Sep 4 | Sep 1 | Sep 7 |
| Jul 3 | Sep 5 | Sep 2 | Sep 8 |
| Jul 4 | Sep 6 | Sep 3 | Sep 9 |
| Jul 5 | Sep 7 | Sep 4 | Sep 10 |
| Jul 6 | Sep 8 | Sep 5 | Sep 11 |
| Jul 7 | Sep 9 | Sep 6 | Sep 12 |
| Jul 8 | Sep 10 | Sep 7 | Sep 13 |
| Jul 9 | Sep 11 | Sep 8 | Sep 14 |
| Jul 10 | Sep 12 | Sep 9 | Sep 15 |
| Jul 11 | Sep 13 | Sep 10 | Sep 16 |
| Jul 12 | Sep 14 | Sep 11 | Sep 17 |
| Jul 13 | Sep 15 | Sep 12 | Sep 18 |
| Jul 14 | Sep 16 | Sep 13 | Sep 19 |
| Jul 15 | Sep 17 | Sep 14 | Sep 20 |
| Jul 16 | Sep 18 | Sep 15 | Sep 21 |
| Jul 17 | Sep 19 | Sep 16 | Sep 22 |
| Jul 18 | Sep 20 | Sep 17 | Sep 23 |
| Jul 19 | Sep 21 | Sep 18 | Sep 24 |
| Jul 20 | Sep 22 | Sep 19 | Sep 25 |
| Jul 21 | Sep 23 | Sep 20 | Sep 26 |
| Jul 22 | Sep 24 | Sep 21 | Sep 27 |
| Jul 23 | Sep 25 | Sep 22 | Sep 28 |
| Jul 24 | Sep 26 | Sep 23 | Sep 29 |
| Jul 25 | Sep 27 | Sep 24 | Sep 30 |
| Jul 26 | Sep 28 | Sep 25 | Oct 1 |
| Jul 27 | Sep 29 | Sep 26 | Oct 2 |
| Jul 28 | Sep 30 | Sep 27 | Oct 3 |
| Jul 29 | Oct 1 | Sep 28 | Oct 4 |
| Jul 30 | Oct 2 | Sep 29 | Oct 5 |
| Jul 31 | Oct 3 | Sep 30 | Oct 6 |
Bred in August
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Aug 1 | Oct 4 | Oct 1 | Oct 7 |
| Aug 2 | Oct 5 | Oct 2 | Oct 8 |
| Aug 3 | Oct 6 | Oct 3 | Oct 9 |
| Aug 4 | Oct 7 | Oct 4 | Oct 10 |
| Aug 5 | Oct 8 | Oct 5 | Oct 11 |
| Aug 6 | Oct 9 | Oct 6 | Oct 12 |
| Aug 7 | Oct 10 | Oct 7 | Oct 13 |
| Aug 8 | Oct 11 | Oct 8 | Oct 14 |
| Aug 9 | Oct 12 | Oct 9 | Oct 15 |
| Aug 10 | Oct 13 | Oct 10 | Oct 16 |
| Aug 11 | Oct 14 | Oct 11 | Oct 17 |
| Aug 12 | Oct 15 | Oct 12 | Oct 18 |
| Aug 13 | Oct 16 | Oct 13 | Oct 19 |
| Aug 14 | Oct 17 | Oct 14 | Oct 20 |
| Aug 15 | Oct 18 | Oct 15 | Oct 21 |
| Aug 16 | Oct 19 | Oct 16 | Oct 22 |
| Aug 17 | Oct 20 | Oct 17 | Oct 23 |
| Aug 18 | Oct 21 | Oct 18 | Oct 24 |
| Aug 19 | Oct 22 | Oct 19 | Oct 25 |
| Aug 20 | Oct 23 | Oct 20 | Oct 26 |
| Aug 21 | Oct 24 | Oct 21 | Oct 27 |
| Aug 22 | Oct 25 | Oct 22 | Oct 28 |
| Aug 23 | Oct 26 | Oct 23 | Oct 29 |
| Aug 24 | Oct 27 | Oct 24 | Oct 30 |
| Aug 25 | Oct 28 | Oct 25 | Oct 31 |
| Aug 26 | Oct 29 | Oct 26 | Nov 1 |
| Aug 27 | Oct 30 | Oct 27 | Nov 2 |
| Aug 28 | Oct 31 | Oct 28 | Nov 3 |
| Aug 29 | Nov 1 | Oct 29 | Nov 4 |
| Aug 30 | Nov 2 | Oct 30 | Nov 5 |
| Aug 31 | Nov 3 | Oct 31 | Nov 6 |
Bred in September
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Sep 1 | Nov 4 | Nov 1 | Nov 7 |
| Sep 2 | Nov 5 | Nov 2 | Nov 8 |
| Sep 3 | Nov 6 | Nov 3 | Nov 9 |
| Sep 4 | Nov 7 | Nov 4 | Nov 10 |
| Sep 5 | Nov 8 | Nov 5 | Nov 11 |
| Sep 6 | Nov 9 | Nov 6 | Nov 12 |
| Sep 7 | Nov 10 | Nov 7 | Nov 13 |
| Sep 8 | Nov 11 | Nov 8 | Nov 14 |
| Sep 9 | Nov 12 | Nov 9 | Nov 15 |
| Sep 10 | Nov 13 | Nov 10 | Nov 16 |
| Sep 11 | Nov 14 | Nov 11 | Nov 17 |
| Sep 12 | Nov 15 | Nov 12 | Nov 18 |
| Sep 13 | Nov 16 | Nov 13 | Nov 19 |
| Sep 14 | Nov 17 | Nov 14 | Nov 20 |
| Sep 15 | Nov 18 | Nov 15 | Nov 21 |
| Sep 16 | Nov 19 | Nov 16 | Nov 22 |
| Sep 17 | Nov 20 | Nov 17 | Nov 23 |
| Sep 18 | Nov 21 | Nov 18 | Nov 24 |
| Sep 19 | Nov 22 | Nov 19 | Nov 25 |
| Sep 20 | Nov 23 | Nov 20 | Nov 26 |
| Sep 21 | Nov 24 | Nov 21 | Nov 27 |
| Sep 22 | Nov 25 | Nov 22 | Nov 28 |
| Sep 23 | Nov 26 | Nov 23 | Nov 29 |
| Sep 24 | Nov 27 | Nov 24 | Nov 30 |
| Sep 25 | Nov 28 | Nov 25 | Dec 1 |
| Sep 26 | Nov 29 | Nov 26 | Dec 2 |
| Sep 27 | Nov 30 | Nov 27 | Dec 3 |
| Sep 28 | Dec 1 | Nov 28 | Dec 4 |
| Sep 29 | Dec 2 | Nov 29 | Dec 5 |
| Sep 30 | Dec 3 | Nov 30 | Dec 6 |
Bred in October
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Oct 1 | Dec 4 | Dec 1 | Dec 7 |
| Oct 2 | Dec 5 | Dec 2 | Dec 8 |
| Oct 3 | Dec 6 | Dec 3 | Dec 9 |
| Oct 4 | Dec 7 | Dec 4 | Dec 10 |
| Oct 5 | Dec 8 | Dec 5 | Dec 11 |
| Oct 6 | Dec 9 | Dec 6 | Dec 12 |
| Oct 7 | Dec 10 | Dec 7 | Dec 13 |
| Oct 8 | Dec 11 | Dec 8 | Dec 14 |
| Oct 9 | Dec 12 | Dec 9 | Dec 15 |
| Oct 10 | Dec 13 | Dec 10 | Dec 16 |
| Oct 11 | Dec 14 | Dec 11 | Dec 17 |
| Oct 12 | Dec 15 | Dec 12 | Dec 18 |
| Oct 13 | Dec 16 | Dec 13 | Dec 19 |
| Oct 14 | Dec 17 | Dec 14 | Dec 20 |
| Oct 15 | Dec 18 | Dec 15 | Dec 21 |
| Oct 16 | Dec 19 | Dec 16 | Dec 22 |
| Oct 17 | Dec 20 | Dec 17 | Dec 23 |
| Oct 18 | Dec 21 | Dec 18 | Dec 24 |
| Oct 19 | Dec 22 | Dec 19 | Dec 25 |
| Oct 20 | Dec 23 | Dec 20 | Dec 26 |
| Oct 21 | Dec 24 | Dec 21 | Dec 27 |
| Oct 22 | Dec 25 | Dec 22 | Dec 28 |
| Oct 23 | Dec 26 | Dec 23 | Dec 29 |
| Oct 24 | Dec 27 | Dec 24 | Dec 30 |
| Oct 25 | Dec 28 | Dec 25 | Dec 31 |
| Oct 26 | Dec 29 | Dec 26 | Jan 1 |
| Oct 27 | Dec 30 | Dec 27 | Jan 2 |
| Oct 28 | Dec 31 | Dec 28 | Jan 3 |
| Oct 29 | Jan 1 | Dec 29 | Jan 4 |
| Oct 30 | Jan 2 | Dec 30 | Jan 5 |
| Oct 31 | Jan 3 | Dec 31 | Jan 6 |
Bred in November
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Nov 1 | Jan 4 | Jan 1 | Jan 7 |
| Nov 2 | Jan 5 | Jan 2 | Jan 8 |
| Nov 3 | Jan 6 | Jan 3 | Jan 9 |
| Nov 4 | Jan 7 | Jan 4 | Jan 10 |
| Nov 5 | Jan 8 | Jan 5 | Jan 11 |
| Nov 6 | Jan 9 | Jan 6 | Jan 12 |
| Nov 7 | Jan 10 | Jan 7 | Jan 13 |
| Nov 8 | Jan 11 | Jan 8 | Jan 14 |
| Nov 9 | Jan 12 | Jan 9 | Jan 15 |
| Nov 10 | Jan 13 | Jan 10 | Jan 16 |
| Nov 11 | Jan 14 | Jan 11 | Jan 17 |
| Nov 12 | Jan 15 | Jan 12 | Jan 18 |
| Nov 13 | Jan 16 | Jan 13 | Jan 19 |
| Nov 14 | Jan 17 | Jan 14 | Jan 20 |
| Nov 15 | Jan 18 | Jan 15 | Jan 21 |
| Nov 16 | Jan 19 | Jan 16 | Jan 22 |
| Nov 17 | Jan 20 | Jan 17 | Jan 23 |
| Nov 18 | Jan 21 | Jan 18 | Jan 24 |
| Nov 19 | Jan 22 | Jan 19 | Jan 25 |
| Nov 20 | Jan 23 | Jan 20 | Jan 26 |
| Nov 21 | Jan 24 | Jan 21 | Jan 27 |
| Nov 22 | Jan 25 | Jan 22 | Jan 28 |
| Nov 23 | Jan 26 | Jan 23 | Jan 29 |
| Nov 24 | Jan 27 | Jan 24 | Jan 30 |
| Nov 25 | Jan 28 | Jan 25 | Jan 31 |
| Nov 26 | Jan 29 | Jan 26 | Feb 1 |
| Nov 27 | Jan 30 | Jan 27 | Feb 2 |
| Nov 28 | Jan 31 | Jan 28 | Feb 3 |
| Nov 29 | Feb 1 | Jan 29 | Feb 4 |
| Nov 30 | Feb 2 | Jan 30 | Feb 5 |
Bred in December
| Bred | Due (64 days) | Earliest (61) | Latest (67) |
|---|
| Dec 1 | Feb 3 | Jan 31 | Feb 6 |
| Dec 2 | Feb 4 | Feb 1 | Feb 7 |
| Dec 3 | Feb 5 | Feb 2 | Feb 8 |
| Dec 4 | Feb 6 | Feb 3 | Feb 9 |
| Dec 5 | Feb 7 | Feb 4 | Feb 10 |
| Dec 6 | Feb 8 | Feb 5 | Feb 11 |
| Dec 7 | Feb 9 | Feb 6 | Feb 12 |
| Dec 8 | Feb 10 | Feb 7 | Feb 13 |
| Dec 9 | Feb 11 | Feb 8 | Feb 14 |
| Dec 10 | Feb 12 | Feb 9 | Feb 15 |
| Dec 11 | Feb 13 | Feb 10 | Feb 16 |
| Dec 12 | Feb 14 | Feb 11 | Feb 17 |
| Dec 13 | Feb 15 | Feb 12 | Feb 18 |
| Dec 14 | Feb 16 | Feb 13 | Feb 19 |
| Dec 15 | Feb 17 | Feb 14 | Feb 20 |
| Dec 16 | Feb 18 | Feb 15 | Feb 21 |
| Dec 17 | Feb 19 | Feb 16 | Feb 22 |
| Dec 18 | Feb 20 | Feb 17 | Feb 23 |
| Dec 19 | Feb 21 | Feb 18 | Feb 24 |
| Dec 20 | Feb 22 | Feb 19 | Feb 25 |
| Dec 21 | Feb 23 | Feb 20 | Feb 26 |
| Dec 22 | Feb 24 | Feb 21 | Feb 27 |
| Dec 23 | Feb 25 | Feb 22 | Feb 28 |
| Dec 24 | Feb 26 | Feb 23 | Mar 1 |
| Dec 25 | Feb 27 | Feb 24 | Mar 2 |
| Dec 26 | Feb 28 | Feb 25 | Mar 3 |
| Dec 27 | Mar 1 | Feb 26 | Mar 4 |
| Dec 28 | Mar 2 | Feb 27 | Mar 5 |
| Dec 29 | Mar 3 | Feb 28 | Mar 6 |
| Dec 30 | Mar 4 | Mar 1 | Mar 7 |
| Dec 31 | Mar 5 | Mar 2 | Mar 8 |
Frequently asked questions
How long is a cat pregnant?
About 63 to 65 days, commonly rounded to 64, with normal births from about day 61 to day 67.
How do I read a cat pregnancy calendar?
Find the mating date in the left column. The bold column shows the average due date, with the earliest and latest normal dates either side.
Can a cat get pregnant again right after giving birth?
Yes. Cats can come back into heat a few weeks after giving birth, even while nursing, so keep unneutered males separated.
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.