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Dog whelping date calculator

Dogs carry for about 63 days from ovulation. Counted from the breeding date, whelping usually falls between day 58 and day 68, because sperm can wait several days for ovulation.

When is my dog due?

A female dog bred today (October 4, 2026) is due around December 6, 2026, between December 1 and December 11, 2026.

BredOctober 4, 2026
Due dateDecember 6, 2026 (day 63)
Normal windowDecember 1, 2026 to December 11, 2026 (days 58 to 68)
Days until whelpingin 63 days
Days pregnant today0

How it is calculated

  1. Start from the breeding date. Use the date of breeding. If the female dog was bred more than once, use the last date.
  2. Add 63 days. The average female dog carries for about 63 days, so the due date is 63 days after breeding.
  3. Mark the normal window. Most whelping happens between day 58 and day 68, so watch from day 58 and call your vet if nothing has happened by day 68.

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Questions

How long is a dog pregnant?

About 63 days from ovulation. From the breeding date, most litters arrive between day 58 and day 68.

Why is a breeding date less precise?

A dog may be bred days before she ovulates. A progesterone-timed ovulation date narrows the window to a day or two around day 63.

What signs mean whelping is close?

A drop in rectal temperature below about 99 F usually comes 12 to 24 hours before labor, along with nesting and refusing food.

Sources

The figures are standard published ranges; individual animals vary, so confirm with your veterinarian.

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