Cavalier King Charles Spaniel pregnancy timeline
A pregnant Cavalier King Charles Spaniel carries for about 63 days — breed doesn't change the clock. What's breed-specific: a typical litter of 3–5 puppies. Enter your breeding or due date below for the full schedule.
Do today
Gear sizing for a Cavalier King Charles Spaniel
The "gather supplies" milestone on your timeline lands two weeks before the due date — here's what that shopping list looks like sized for a typical Cavalier King Charles Spaniel (13–18 lb):
- Whelping box: 30 × 30 in. Mom needs room to stretch out fully with space left for the litter; the entry lip should be low enough for her to step over comfortably at full term but high enough to keep newborns in.
- Crate: 24 in — her quiet retreat near the whelping area during the final weeks, and the safe way to travel to the vet for the X-ray and any delivery-day drive.
- Collar 10–14 in, harness S: late-pregnancy walks should be gentle, and a well-fitted harness avoids pressure on her midsection entirely.
Buy before the final-two-weeks crunch — the timeline's supplies milestone exists because whelping boxes in particular sell in odd sizes and ship slowly. Sizes above are typical retail ranges for the breed; a pregnant dam near term can need a size up from her usual, so measure her, don't guess.
Frequently asked questions
How long is a Cavalier King Charles Spaniel pregnant?
About 63 days from breeding, the same as every breed — gestation length doesn't vary meaningfully by breed. The normal range is 57–65 days.
How many puppies does a Cavalier King Charles Spaniel usually have?
A typical Cavalier King Charles Spaniel litter is 3–5 puppies. The final-week X-ray (after day 55) gives you the real count for your litter.
What size whelping box and crate for a Cavalier King Charles Spaniel?
For a typical Cavalier King Charles Spaniel (13–18 lb), plan on a whelping box around 30 × 30 in and a 24 in crate for mom. Collar 10–14 in, harness size S. Sizes are typical retail ranges — measure your own dog before buying.
How long are dogs pregnant?
About 63 days from breeding on average, with a normal range of 57–65 days. Gestation length does not meaningfully differ by breed — a French Bulldog and a Great Dane carry for the same two months.
When can a vet confirm my dog is pregnant?
A relaxin blood test can confirm from roughly day 22–27 after breeding, and an ultrasound between days 25–35 shows fetal heartbeats. Early negatives can be false — recheck a week later.
When should I take an X-ray to count puppies?
After day 55, when fetal skeletons have calcified. The final-week X-ray gives a reliable count so you know when whelping is finished.
All breeds: dog pregnancy calculator. Similar-size breeds: Dachshund pregnancy timeline, Poodle pregnancy timeline, Yorkshire Terrier pregnancy timeline, Miniature Schnauzer pregnancy timeline.