Dogs · pregnancy · free
Dog pregnancy due date calculator
Pick the date you know and what it is. You get the window of dates the puppies are due, never one day.
Due betweenApr 28, 2026 and May 12, 2026counted 58 to 72 days from Mar 1, 2026
That month has fewer days, so the count starts from its last day.
A window, because breeding does not time ovulation: a veterinarian can narrow it with ovulation timing (LH or progesterone tests).
Call your veterinarian for a pregnancy check, for the signs of trouble in whelping, and before the due window starts to plan the birth.
The window is the date you know plus 58 to 72 days (first day of breeding), 64 to 66 days (LH surge) or 56 to 58 days (first day of diestrus), from the Merck Veterinary Manual. How we work it out.