Second trimester · Days 36–42

Week 6 of dog pregnancy: skeletons begin to harden

Fetal bones start to mineralize and her belly begins to enlarge.

Updated October 2026 · Information only, not veterinary advice

What you may notice

  • Belly starts to enlarge.
  • She may seem hungry all the time or full quickly.

Care and feeding

Split meals into three or four smaller portions as the growing uterus leaves less room for her stomach.

Split her food into three or four smaller meals, because the growing uterus leaves less room for her stomach.

Vet this week

Nothing routine unless she is unwell.

Questions

Frequently asked questions

Why is my dog eating less in week 6?

The uterus presses on the stomach. Offer smaller meals more often. If she refuses food for more than a day, call your vet.

Can I feel the puppies yet?

Usually not. Vets can sometimes feel them, but gentle handling is best. Do not press on her belly.

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