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

Share

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 dog paws 3 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

The Spice Cabinet Dangers Most Dog Owners Don’t Think About

Most people know chocolate is off-limits for dogs. Fewer realize that some of the most common herbs and spices sitting in a kitchen...

A Major Breakthrough in Canine Anxiety Care: FDA Approves First Dual-Purpose Medication

Why This FDA Approval Is Such Important News For years, veterinarians and pet parents have struggled with a frustrating reality in canine behavioral...

Ask Dr. Paola- Help! Can Shock Collars Cause Seizures? (June 1, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Behind Most “Bad” Dog Behavior Is a Pretty Simple Problem (and Solution)

Dogs are supposed to be easygoing companions, and many seem to live up to it: sleeping on the couch for hours, watching the...

More related

Will a Shih Tzu Be Good With My Kids? Everything You Want to Know!

Shih Tzus are cute dogs that are often thought of as high-maintenance pups that are not suitable for homes with children, or even...

Cane Corso Tibetan Mastiff Mix: Info, Pictures, Care & More

If you are looking for a large and fuzzy dog, you might want to consider a Cane Corso Tibetan Mastiff mix. They can...

Carnauzer Dog Breed: Info, Pictures, Care & More

The Carnauzer is an interesting mixed breed created by mixing the Miniature Schnauzer with the Cairn Terrier Mix. It’s a healthy dog that...

Dog Treats: How Many Is Too Many? Vet-Reviewed Facts & Care Tips

Dog treats can help with training, act as a tool to get your dog to behave better, and can be used as a...

Keep reading

Homemade Dog Food vs Store-Bought: Vet-Verified Pros & Cons

Dog owners want to give their dogs the best food possible, which may lead some people to wonder which is better for them: homemade or store-bought food? In this article, we compare both in detail. In almost all aspects, store-bought...

Dogster_Homemade vs Store-bought dogfood

How Much Should I Feed My Corgi? Vet-Reviewed Feeding Guide

Most Corgis love to eat. They’re food-driven, and there’s nothing wrong with that! But while you’ll never have to question how to motivate your Corgi, one thing you might have to worry about is their overeating. Corgis always want to...

Hungry Welsh corgi Pembroke or cardigan puppy eats from ceramic bowl standing on fleecy carpet

Can Dogs Eat Pickles? Vet-Verified Nutrition Facts & FAQ

If your dog is begging for a taste of a pickle, it can be tempting to give in to your pup’s adorable charms. But don’t unscrew the lid of your jar just yet—although pickles are not often toxic to dogs,...

Can Dogs Eat_Pickles

6 Great Sources of Carbohydrates for Dogs: Vet-Verified Nutrition Facts

When it comes to dog nutrition, carbohydrates are a tricky subject. While canines can get energy from protein and fat, many dog food brands contain one or multiple sources of carbs. On the opposite end, there are dog food recipes...

dog eating rice

Can Dogs Eat Jasmine Rice? Vet-Reviewed Facts & Tips

Every dog enjoys the occasional treat added to dog food. Dog owners love to spoil their canine kiddos with extra treats, as they worry about them getting bored eating the same thing day in and day out. However, you should...

Can Dogs Eat Jasmine Rice

Gravy Train Dog Food Review 2026: Recalls, Pros & Cons

Review Summary The best way to a dog’s heart is through their stomach, and feeding them nutritional and tasty food is a surefire way to make you their favorite person. Finding a brand that you and your dog likes can...

Dogster_Gravy Train Dog Food Review

11 Best Wet Dog Food for Huskies in 2026 – Reviews & Top Picks

Every Siberian Husky owner knows that these dogs have tons of energy. Huskies require a quality, high protein diet low in carbs to recharge and refuel, making the decision of what to feed an important task. Huskies are extremely active...

husky eating

Can Dogs Eat Bagels? Vet-Verified Nutrition Facts & Health Risks

Almost every dog owner has a hilarious story about their dog stealing their food. If your dog has stolen your bagel, it may seem funny (if slightly exasperating), but the truth is that bagels can be detrimental to your dog’s...

Can Dogs Eat_bagels

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter