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When Are the Puppies Due?

Calculate your dog's due date from the breeding date. See the pregnancy timeline, milestones, and whelping preparation checklist.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Dauer

63 Tage (±2) ab Eisprung. Ultraschall ab Tag 25-28. Roentgen ab Tag 45 zeigt Welpenanzahl.

Vorbereitung

Ab Woche 5: Welpenfutter. Letzte Woche: Wurfplatz vorbereiten. Ueber 65 Tage ohne Geburt: sofort zum Tierarzt.

⚡ CalcWolf Insight

The temperature drop method is the most reliable non-invasive predictor of whelping. Use a digital rectal thermometer and record readings at the same times daily. Normal canine temperature is 101-102°F. A sustained reading below 99°F means puppies are coming within 24 hours.

Frequently asked questions
Wie lange?
63 Tage ±2.
Wie viele Welpen?
Klein: 1-4. Mittel: 4-8. Gross: 6-12.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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