How to Care for a Pregnant Dog (Ask Your Vet)

The instinct is to start feeding her more the day you find out, and for the first two-thirds of the pregnancy that is exactly the wrong move. The puppies barely grow until week five; almost all of their weight is put on in the final three weeks. Extra food before then goes onto the mother dog as fat, and an overweight female dog has a harder whelping and a higher chance of needing a cesarean. Most of what good pregnancy care involves is doing very little for six weeks and then doing several specific things properly. Work out where she is in the nine weeks with the free dog pregnancy calculator.

The Feeding Mistake Almost Everyone Makes

If you take one thing from this page, take this.

Do not increase her food during the first two-thirds of the pregnancy. Weeks one to five require the same amount she was eating before, because fetal growth in that period is negligible.

About 70 to 80 per cent of fetal weight gain happens in the last three weeks. That is when her energy requirement genuinely rises, and not before.

Extra food fed early becomes maternal fat, and fat is the enemy of an easy whelping. Overweight female dogs have longer labors, higher rates of uterine inertia and more caesareans.

Some female dogs go off their food around weeks three and four. This is common, hormonal, and usually lasts a few days. Feeding smaller amounts more often helps; force-feeding does not.

Weigh her weekly and record it. A normal pregnancy adds roughly 15 to 25 per cent to her body weight by term, most of it in the final two weeks. Steady gain from week two suggests you are overfeeding.

Her portion before the increase is simply her normal maintenance ration — if you are not sure what that is, the dog food calculator gives you a starting figure to work from.

Feeding Across the Nine Weeks

The increase, once it starts, is gradual rather than sudden.

Roughly one and a half times maintenance by term is the usual target. A very large litter may push it higher; a singleton will need less.

Increase by about 10 per cent a week rather than in one jump. Sudden changes cause digestive upset at the worst possible time.

The number of meals matters as much as the amount. By week eight the uterus takes up so much abdominal space that she physically cannot hold a large meal.

Expect appetite to fall away in the last 24 to 48 hours. Many female dogs refuse food shortly before whelping, and that is a useful sign rather than a worry.

Do not restrict water at any point. Requirements rise through the pregnancy and rise sharply again during lactation.

Choosing the Right Food

The type matters more in the last three weeks than at any other point.

A growth or puppy diet is the standard recommendation for late pregnancy and lactation. The reason is calorie density: she needs far more energy from a stomach that has far less room.

Avoid large-breed puppy formulations for this purpose. They are deliberately restricted in calcium and energy density for skeletal reasons in growing large-breed puppies, which is the opposite of what a pregnant dog needs.

Transition over about a week. Mix increasing proportions of the new food into the old to avoid an upset.

A complete, reputable commercial diet needs nothing added to it. The "complete and balanced" statement on the label already accounts for the requirements of pregnancy if the food is labeled for growth or reproduction.

Home-prepared diets are risky here. The margin for error in calcium, phosphorus and energy is much smaller in pregnancy, and getting it wrong has consequences for both the mother dog and the puppies.

Keep the same diet running into lactation, which is when her requirements peak — often at two to four times maintenance, as covered in how much should a nursing dog eat.

Supplements: Mostly Unnecessary, Sometimes Harmful

This is one of the few areas where doing something is worse than doing nothing.

Do not supplement calcium during pregnancy. This is the important one. Extra dietary calcium while she is pregnant suppresses the hormonal system that mobilises calcium from her own bones, and that system is exactly what she needs working during lactation. Supplementing raises rather than lowers the risk of eclampsia after whelping.

Eclampsia is a genuine emergency, usually appearing in the first few weeks of nursing as restlessness, panting, stiffness, tremors and then collapse. It requires immediate veterinary treatment.

Vitamin and mineral supplements added to a complete diet unbalance it. Excess vitamin D and vitamin A in particular can cause harm to developing puppies.

Raspberry leaf, herbal preparations and similar are unproven. Some are harmless; none has good evidence of benefit, and a few are not safe in pregnancy.

Folic acid is one exception worth asking about. In some brachycephalic breeds it is used from before mating through early pregnancy with the aim of reducing cleft palate risk. Ask your vet rather than starting it yourself.

The default answer to "should I add anything" is no, unless your vet has recommended it for a specific reason.

Exercise Through the Nine Weeks

Rest is not the goal. Fitness helps her whelp.

Keep normal exercise for the first four to five weeks. She is not fragile in early pregnancy and there is no benefit in confining her.

Reduce intensity, not frequency, from about week six. Regular gentle lead walks several times a day are ideal; long runs, agility, jumping and rough play with other dogs are not.

Avoid anything with abdominal impact. Jumping down from cars and furniture, wrestling, and being knocked into by boisterous dogs are the realistic risks.

Short frequent walks suit the last two weeks. She will need to urinate more often as the uterus presses on the bladder, and multiple short outings are more comfortable than one long one.

Swimming is best avoided in late pregnancy, mainly for infection risk around the vulva rather than the exertion.

A fit female dog has measurably easier labors. Muscle tone in the abdominal wall matters during the pushing stage, which is a good reason not to wrap her in cotton wool from week one.

Medication, Worming and Vaccination

The rules here are specific and easy to get wrong.

Tell every vet, nurse and groomer that she may be pregnant before anything is given, including flea treatments and shampoos.

Live vaccines should not be given during pregnancy. If her vaccinations are due, the time to do it is before mating, not during. Ideally boosters are brought forward so that her colostrum carries good antibody levels to the puppies.

Many routine drugs are not safe in pregnancy, including some wormers, some antibiotics and most non-steroidal anti-inflammatories. Nothing should go into her without veterinary approval.

Roundworm control is the exception that requires action. Toxocara canis larvae reactivate during pregnancy and pass to the puppies before they are born, so treating the mother dog is about protecting the litter rather than her.

Fenbendazole regimes are the usual approach, commonly given daily from around day 40 of pregnancy through to about two weeks after whelping. Products, doses and durations differ, so get the protocol from your vet rather than a forum.

Flea control still matters, because a heavy flea burden on newborn puppies causes real anemia. Use only a product your vet confirms is licensed for pregnant and nursing mother dogs.

Veterinary Checkpoints and What Each Buys

Three appointments cover most pregnancies, and each answers a different question.

Around day 28 to 30: confirmation. A scan shows live puppies with beating hearts, or a relaxin blood test gives a simple yes or no. This is also the appointment at which to agree the worming plan.

Around day 45 to 50: the count. An X-ray at this stage counts the mineralised skeletons reliably, and knowing the number is what tells you on the night whether whelping has finished — the reasoning is set out in how many puppies do dogs have.

Also at that visit: the whelping plan. Which practice covers out of hours, what it costs, how far away it is, and what the arrangement is for an emergency cesarean at three in the morning.

A pre-mating check is the fourth, if you are planning ahead. Vaccination status, body condition, worming and any breed-specific health testing all belong before the mating, not after.

High-risk cases need more contact. Brachycephalic breeds, singleton pregnancies, female dogs with a history of a difficult whelping, and very young or older female dogs are all reasons for closer monitoring.

Keep a written record throughout. Dates, weights, appetite, the scan and X-ray results. A stage-by-stage view of what is happening internally is in dog pregnancy week by week.

Preparing the Last two weeks

The final two weeks are the practical ones.

Have the whelping box up by day 50. She needs two weeks to accept it as her place, otherwise she will choose your wardrobe instead. The build and placement details are in how to prepare a whelping box.

Start twice-daily temperature checks from about day 55. A drop of roughly 2°F (1°C), to around 99°F (37°C), typically precedes whelping by 12 to 24 hours — the full set of pre-labor signs is in how to know labor is close in dogs.

Isolate her from other dogs from about day 50. This reduces the risk of infectious disease reaching newborn puppies and settles her routine.

Assemble the kit now, not on the night: clean towels, a digital thermometer, dental floss or thread, blunt scissors, a heat source, kitchen scales, iodine solution, and a notebook.

Write the out-of-hours number somewhere visible. Not in a phone contact you will have to search for while holding a puppy.

Trim long hair around the vulva and mammary area if she has a heavy coat, for hygiene and to let the puppies find the teats.

When to call the vet During Pregnancy

Pregnancy is not a reason to wait and see.

Any vaginal discharge before whelping. Green, black, bloody or foul-smelling discharge is a same-day call. A small amount of clear mucus late on is normal; anything colored is not.

Vomiting beyond the odd episode, or any vomiting accompanied by lethargy or a refusal to drink.

Going off food entirely for more than 24 hours at any point other than the final day or two before whelping.

Straining, restlessness or obvious abdominal pain well before term.

A drop in temperature followed by more than 24 hours without labor starting.

Passing 65 days from a confirmed ovulation date, or 72 days from a mating date, without labor. At that point the normal range is exhausted and she needs to be seen.

FAQ

When should I start feeding a pregnant dog more?

From around week five or six, not before. Fetal growth is negligible for the first five weeks, so earlier increases add fat to the mother dog rather than supporting the puppies. Increase by roughly 10 per cent a week to about 1.5 times maintenance.

What should I feed a pregnant dog?

A complete growth or puppy diet from about week five, for its higher calorie density, avoiding large-breed puppy formulations because those are deliberately restricted in energy and calcium. Transition over a week and keep the same food through lactation.

Should I give my pregnant dog calcium?

No. Supplementing calcium during pregnancy suppresses her own calcium-regulating system and increases the risk of eclampsia once she is nursing. A complete commercial diet labeled for growth or reproduction already contains what she needs.

Can I walk my dog while she is pregnant?

Yes, and you should. Keep normal exercise for the first month, then shift to shorter, gentler, more frequent lead walks. Avoid jumping, rough play and anything with abdominal impact. Fitness makes labor easier.

Can a pregnant dog be wormed?

Yes, but only with a veterinary protocol. Roundworm larvae pass to puppies before birth, so treating the mother dog protects the litter. Fenbendazole regimes from around day 40 through to two weeks after whelping are commonly used.

When should I set up the whelping box?

By around day 50, so she has two weeks to accept it before she needs it. Put it somewhere quiet, warm and away from household traffic, and start feeding her near it so she associates it with normal life.

Do Less Early, Do It Properly Late

Good pregnancy care is mostly a matter of restraint followed by precision. For six weeks the right answer is the same food, the same walks, no supplements, and no medication without veterinary approval. Then the diet shifts to a growth food and climbs to about one and a half times maintenance across the final three weeks, split into smaller meals as space runs out. Worming follows a veterinary protocol rather than a guess, calcium stays out of the bowl, the whelping box goes up by day 50, and temperature checks start by day 55. Any colored discharge, persistent vomiting or unexplained pain is a same-day veterinary call rather than something to watch. Keep track of exactly where she is with the free dog pregnancy calculator.