🐕Dog Pregnancy Calculator

Week-by-week timeline

1. 1

   Week 1 · —

   Fertilization; embryos travel to the uterus. No visible changes.

2. 2

   Week 2 · —

   Embryos implant. Keep her routine normal and avoid medications without vet approval.

3. 3

   Week 3 · —

   Possible morning sickness or appetite dip. Embryos implanted around day 18–21.

4. 4

   Week 4 · —

   Vet can confirm pregnancy by ultrasound (from about day 25) or palpation.

5. 5

   Week 5 · —

   Belly starts to grow. Gradually switch to a puppy or growth formula food.

6. 6

   Week 6 · —

   Nipples enlarge and darken. Appetite increases; offer smaller, more frequent meals.

7. 7

   Week 7 · —

   X-ray from about day 45 can count puppies. Set up a quiet whelping box.

8. 8

   Week 8 · —

   Puppies may be felt moving. She may start nesting. Keep exercise gentle.

9. 9

   Week 9 · —

   Due! Temperature drops below 99°F (37.2°C) about 12–24 hours before labor.