Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Dog Mating Guide: Cycles, Factors & Tips

Dog sniffing dog in heat

Mating dogs can be a rewarding experience, but the practice must be done responsibly and with the parent and puppies’ health and welfare as a priority. There is much to learn about mating dogs before the first breeding attempt. We have put together this dog mating guide to help make preparing and planning for a mating experience more successful and enjoyable. Here is everything that you need to know about dog mating.

divider single dog paw oct 2024

It All Rides on the Female’s Cycle

Dog Heat Cycle
You are free to use this image but we do require you to link back to Dogster.com for credit

Dogs must rely on the female’s reproductive cycle to conceive. If a female dog is not “in heat,” she cannot conceive puppies and generally won’t mate because she or a male dog will have little interest. Mating in heat also does not guarantee conception. The timing of matings has to be within a fertile window around the time of ovulation. Female dogs, or bitches, typically go into heat, which is technically referred to as the estrus cycle, twice a year. The estrus cycle usually lasts anywhere from 2 to 4 weeks.

Bitches typically go into heat for the first time when they’re around 6–12 months old or older, depending on the breed, but it is highly advised to wait until your girl reaches skeletal maturity before you consider breeding her. This typically coincides with breeding on the second or third heat cycle.

Once you have noticed that your bitch is in heat, it’s time to call your veterinarian. To determine the best time to mate, the vet can perform a few tests to determine when ovulation is likely to happen. They can do blood tests looking at one of two hormones (progesterone or luteinizing hormone) or take cell samples from the vagina.

The window of highest fertility will occur 2 days before or 4 days after ovulation. On average, this is between days 10 and 14 of estrus. However, it varies between bitches, so getting the vet tests is the most reliable way to go.

Signs That a Female Dog Is in Heat

Since a female dog must be in heat to reproduce, it is important to look for signs of their cycle to determine when mating should take place. The first phase is called proestrus, where a few physical changes start happening. She won’t ovulate or want to mate in this phase. In true estrus, she will have behavior changes. Luckily, there are a variety of signs that bitches tend to display as they go into heat and work their way through the estrus cycle. Here is what to look for:

  • A change in appetite
  • Behavioral changes
  • Increased urination frequency
  • Swelling of the vulva
  • Vaginal discharge
  • Receptivity to male dogs

A female in heat will usually show interest in males and turn her butt toward them when they are ready to mate. She will move her tail to the side and enable a male dog to mount.

jack russell in heat
Photo Credit: Reshetnikov_art, Shutterstock

Choosing Breeding Dogs

It is important to consider things such as the size, temperament, and breed of a prospective mate for your bitch. Ideally, you will be breeding purebred dogs with the goal of improving the breed. This means your parent dogs will both have sound temperaments, representing the best of their breed.
You should also have an idea of the common health problems facing the parent breed(s). The goal is to breed healthy puppies with no genetic or congenital problems.

At a basic level, both dogs should have been vet checked and cleared of any conditions or defects that could be passed onto the offspring. Breed-specific screening tests, such as genetic tests, heart screening examinations, and hip scoring, should also be performed to ensure healthy puppies.

Responsible Breeding Considerations

Dogster_Dog Pregnancy Cycle Infographic_v1-9_Jan 10 2025 (1)
You’re welcome to use our images, but we require you link directly to this site for credit (ex. Image from Dogster)

Many dogs in the world have no homes and nobody to feed them. They end up in animal shelters, and many live as strays until they pass away, which is sometimes at a young age. Therefore, it is important to practice responsible breeding when mating your dog with another at any time. Never let your female dog spend time with other dogs of the opposite sex when she is in heat unless you are ready to breed, or you might find yourself dealing with raising unwanted puppies.

Always make sure that you have a plan for what will happen to the puppies once they are weaned. If you will not keep them all, ensure that there is a market for your puppies, and give them a good home before they are born. If you cannot control your dog’s breeding, it is crucial to think about getting them spayed or neutered.

Once your bitch is pregnant, you should get an X-ray in the final trimester to know how many puppies to expect. You will also need to research common complications of pregnancy and puppy rearing like dystocia, retained placenta, puppy mortality, aspiration pneumonia, orphaned puppies, mastitis, and milk fever. You must be prepared for each and every one of these possibilities and others. Breeding pups can take an emotional and financial toll and be incredibly time-consuming.

divider dog paws 3 oct 2024

Final Thoughts

It is always a good idea to consult with a professional breeder before mating your dog with another for the first time. Spend plenty of time researching, preparing, and gathering supplies before you even consider making puppies. What kinds of puppies are you thinking about breeding? How many litters do you plan to bring into existence? Share your thoughts with our community.

Related Reads:

Sources
  • https://www.msdvetmanual.com/dog-owners/reproductive-disorders-of-dogs/management-of-reproduction-in-dogs
  • https://www.petmd.com/dog/general-health/dog-in-heat
  • https://shelleydriveanimalclinic.net/blog/244280-what-is-the-best-age-for-a-dog-to-get-pregnant
  • https://vcahospitals.com/know-your-pet/breeding-for-pet-owners-estrus-and-mating-in-dogs
  • https://www.vin.com/apputil/content/defaultadv1.aspx?pId=11372&meta=generic&catId=35318&id=5709846&ind=268&objTypeID=17
 

Featured Image Credit: atiger, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Skye Terrier Dog Breed: Info, Pictures, Facts & Traits

Developed on the Isle of Skye in Scotland, the Skye Terrier is a formidable hunting dog that was bred to hunt farm vermin...

World Rabies Day 2025: When & What Is It?

World Rabies Day might sound like a fresh new phrase you’ve never heard before, but this holiday has been in motion since 2007....

Crown & Paw Pet Portraits Review 2025: An Expert’s Breakdown

Crown & Paw Pet Portraits offer a variety of ways for you to frame your favorite image of your furry friends and memorialize...

How to Help Senior Chihuahuas With No Teeth: 10 Vet-Approved Ways

Smaller dogs can have difficulty managing all 42 teeth in their undersized skulls. Breeds like Yorkies and Chihuahuas are more susceptible to crowding,...

More related

What Ingredients to Avoid in Dog Food: 6 Vet-Verified Additives to Keep Away

Pet owners are putting more effort into their pets, including choosing high-quality pet foods to help them live long and happy lives. With...

Can Dogs Recognize Faces? What Science Says

We know that dogs have an excellent sense of smell and can identify their favorite people by their scents, but do dogs also...

10 Best Nail Clippers for Dogs with Black Nails in 2025 – Reviews & Top Picks

Clipping a dog’s nails is critical for every dog owner to remember, but the job is a bit more challenging when your pup...

Do Body Wraps Truly Help Dogs With Anxiety? (Vet Answer)

Anxiety in dogs can be triggered in different situational or behavioral contexts. You may not always be with your beloved four-legged friend when...

Keep reading

Can Dogs Eat Scallions? Vet-Verified Nutrition Facts & Risks

If your dog licks their lips as your vegetable stir-fry sizzles on the stove, you might wonder if it’s safe to slip them a bite. It might not seem dangerous to give them just a taste, but you should first...

Can Dogs Eat Scallions

Can Changing Dog Food Cause Vomiting? Vet-Reviewed Facts & Advice

I have a four-year-old Boxer who has a very strange thing happening. He is throwing up a foamy white discharge. He first threw up yellow......
Dog vomit in the living room on the floor

Can Dogs Eat Corned Beef? Vet-Verified Safety & Nutrition Facts

Corned beef is a popular salt-cured meat that’s consumed in a variety of forms. Some people buy corned beef from their local deli and make sandwiches. Corned beef is also popular at certain times of the year, such as Saint...

can dogs eat corned beef?

4 Benefits of Turmeric for Dogs (Based on Science)

Dogs are like humans. They are susceptible to various diseases that can cause joint pain and inflammation and can also benefit from this yellow spice. We have listed four benefits of turmeric for your dog, along with other information you...

Close-Up Shot of Turmeric Powder

10 Best Foods for Husky Puppies in 2025 – Reviews & Top Picks

Siberian Huskies are working dogs who were bred to pull sleds across the tundra, but they’re also affectionate companions that enjoy being around humans and other pets. To keep your Husky puppy healthy, you’ll need to serve a nutritious diet...

young siberian husky eating

Coconut Oil Dog Treats: 8 Vet-Approved Homemade Recipes

Coconut oil seems to be a miracle cure and go-to for many things these days. This nutrient-dense ingredient can easily replace other less-healthy oils in meals, and we can even safely share this neutral, hypoallergenic substance with our canine counterparts....

coconut oil in a glass

Can Dogs Eat Rye Bread? Vet-Verified Nutrition Facts & FAQ

Sharing food comes naturally to us. It doesn’t matter if it’s our family or a friend; it’s a bonding experience. Therefore, it’s not a stretch if the things we want to give our dog extends to many tasty morsels we...

Can Dogs Eat Rye Bread

How Much Calcium Do Dogs Need? 6 Best Sources

We tell our children that if they want to grow big and strong, they better drink their milk. Dogs need calcium as we do, and having the right amount in their systems gives them stronger teeth, nails, bones, and coats....

Boxer with a bone