Dog Care

Signs of Dog Labor: What to Expect Hour by Hour

May 31, 2026 · 8 min read

Knowing what normal dog labor looks like — and what isn’t normal — is one of the most practically useful things a dog owner or breeder can have going into a whelping. Most dogs deliver their puppies without any intervention. But being able to tell “this is taking longer than expected” from “this is an emergency” requires knowing the timeline.

Here’s a realistic, hour-by-hour breakdown of what to expect from the first signs of labor through delivery.

The Days Before: Pre-Labor Signs (Days 58–63)

Labor doesn’t start without warning. In the final days of pregnancy, most dogs show a cluster of behavioral and physical changes that signal whelping is approaching.

Nesting behavior: Most pregnant dogs begin actively seeking out quiet, secluded spots and rearranging bedding in the week before delivery. This instinctive preparation intensifies as labor approaches. If you have a whelping box set up, introduce your dog to it 1–2 weeks before her due date so she’s comfortable with it by the time she needs it.

Reduced appetite: Many dogs stop eating 12–24 hours before labor begins. Some skip a single meal; others stop eating for a full day. This is normal and expected. Don’t force food.

Temperature drop: This is the most reliable pre-labor indicator. A dog’s normal rectal temperature is 100–102.5°F. Within 24 hours of labor, most dogs experience a transient drop to below 99°F — sometimes as low as 97–98°F. The drop typically lasts around 8 hours before returning to normal.

Taking rectal temperature twice daily (morning and evening) starting around day 55 is worth doing if you want advance notice. Once you see the drop, expect labor within 12–24 hours.

Restlessness and panting: As labor approaches, many dogs become visibly unsettled — pacing, getting up and lying down repeatedly, unable to find a comfortable position. Panting without physical exertion is common.

Vaginal discharge: A small amount of clear to whitish discharge in the final days is normal. Any green, black, or foul-smelling discharge before puppies are born warrants immediate veterinary contact.

Stage 1 Labor: 6–12 Hours (Sometimes Up to 36)

Stage 1 is the longest phase and the one that catches owners off guard because no puppies arrive. The uterus is beginning to contract and the cervix is dilating, but this is all internal. Externally, your dog will look and act uncomfortable.

What you’ll see:

What you shouldn’t see:

Stage 1 typically lasts 6–12 hours for dogs who have whelped before. First-time mothers may take up to 24–36 hours. As long as your dog isn’t actively straining without producing a puppy, the length of Stage 1 alone is not a cause for emergency concern.

Your job during Stage 1: Stay calm, stay nearby, minimize disruption, and let her labor. Avoid the impulse to hover or continuously check on her. Keep children and other pets away from the area.

Stage 2 Labor: Active Delivery

Stage 2 begins with the birth of the first puppy and ends with the last. This is when you’ll see visible straining and contractions.

The first puppy: 30 minutes to 2 hours after active straining begins

Once your dog begins visibly pushing — bearing down, abdomen visibly contracting — the first puppy should arrive within 30–60 minutes of active effort in most cases. Up to 2 hours is within normal range for the first puppy. Beyond that, contact your vet.

Puppies are born in a fluid-filled sac. The mother will typically break the sac, chew the umbilical cord, and stimulate the puppy by licking. If she doesn’t do this within a minute or two, you’ll need to carefully break the sac yourself, clear fluid from the puppy’s mouth and nose, and gently rub it with a warm towel to stimulate breathing.

Between puppies: 15 minutes to 1 hour is normal

After the first puppy, your dog will typically rest briefly before pushing again. The interval between puppies is usually 15–60 minutes. Your dog may nurse the earlier puppies during rest intervals — this is normal and actually helps stimulate further contractions via oxytocin release.

When to call the vet between puppies:

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Stage 3: Passing the Placentas

Each puppy is followed by a placenta, usually within 5–15 minutes of the puppy’s birth. In some cases, two puppies are born before their placentas pass. It’s important to count placentas — one per puppy. A retained placenta can cause serious infection (metritis) and requires veterinary attention.

Your dog will likely try to eat the placentas. Allowing her to eat one or two is normal and instinctive. Eating all of them often causes vomiting and diarrhea — removing the rest is reasonable.

After Delivery: The First Few Hours

Once the last puppy has arrived and all placentas have passed, your dog will settle into nursing. In the first hours after whelping:

Normal:

Call your vet if:

Hour-by-Hour Summary

Timeframe What’s Happening Action
Days 58–63 Nesting, appetite loss, temperature drop Take temp twice daily; prepare whelping box
T-24 hrs Temp drop below 99°F Labor within 12–24 hours
Stage 1 (6–36 hrs) Restlessness, panting, no straining Stay nearby; minimize disruption
First puppy Active straining begins Puppy expected within 30–120 minutes
Between puppies Rest, nursing Normal up to 60 minutes; >2 hours = call vet
Final puppy Count placentas One per puppy; any retained = call vet
Post-whelping Nursing, mild discharge Monitor for bleeding, fever, eclampsia signs

When to Go to the Emergency Vet

Call your vet or go to emergency without waiting if:

Having your vet’s after-hours number and the nearest emergency clinic’s number saved before whelping day is one of the most useful things you can do. Labor doesn’t schedule itself around business hours.

This guide is for informational purposes only. Always work with a veterinarian during your dog’s pregnancy and whelping, and contact your vet immediately if you have concerns about labor or delivery.