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 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

Dogster’s Weekly Photo Contest Winners: My Best Trick (April 16, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

From Grief to Gratitude: How One “Potato” and a Road Trip Changed Everything

The “COVID Puppy” phenomenon is a well-known chapter of the pandemic, but for Alexis Walling, the arrival of a tiny, wrinkled English Bulldog...

Why Dogs Play Too Rough — And the Simple Fixes That Prevent It From Becoming a Problem

A dog that plays too rough with others is a problem that builds fast. One minute, the dogs are running and chasing, the...

Ricky Gervais Says: It’s Time to Release The Dogs

As activists prepare to carry out the biggest Open Rescue in the history of animal welfare, Ricky Gervais says, “it’s time to release...

More related

Carbon Monoxide Poisoning in Dogs: Our Vet Explains Signs, Causes & Treatment

You’re probably familiar with carbon monoxide poisoning in people, but did you know it’s something you need to be concerned about for your...

15 Dog Breeds Who Get Along With Other Pets (With Info & Pictures)

So, you want to add a dog to your home, but you already have pets. That leads to a conundrum, because it means...

9 Vet-Verified Fascinating Shih Tzu Facts That Might Surprise You

Shih Tzus are cute, cuddly, and have incredibly soft fur. They are also quite sociable and interactive. However, many people don’t know much...

5 Tips on Disaster Preparedness for You & Your Dog (2026 Guide)

During the long, hot summers, my thoughts turn to the threat of wildfires. We live in the Santa Cruz Mountains, and the charred...

Keep reading

Can Dogs Eat Pecans? Vet-Reviewed Facts & Safety Guide

If your dog is a dedicated beggar, it can be hard to resist sharing your food with them. Pecans and other nuts are popular snacks for humans, but are they okay for dogs? b>While pecans aren’t classed as toxic according...

Can Dogs Eat Pecans

The Farmer’s Dog vs Spot & Tango: Our 2026 In-Depth Comparison

It’s easy to get lost when venturing through the pet food jungle. With our dogs being part of the family, we want only the best for them when it comes to food. Trying to find the best brands, tasty recipes,...

Dogster_Dog Food The Farmer_s Dog VS Spot & Tango

Can Dogs Eat Jicama? Vet-Verified Facts

As a dog owner, you know that canines will eat just about anything that they can get ahold of, even if it is not healthy or safe for them. Food scraps, garbage, and even poop are typically considered delicacies by...

Can Dogs Eat_jicama

8 Best Fresh Dog Food Delivery Services in Canada of 2026 – Reviews & Top Picks

There are many fresh dog food delivery services out there, but it seems that many of the most raved-about services do not provide delivery options to Canada. But Canadians need not worry as we set out on a mission today...

bulldog eating fresh food

Can Dogs Eat Strawberries? Vet Approved Facts & FAQ

Strawberries are one of the most cherished summertime fruits because of their healthy properties and sweet flavor. A plump and juicy strawberry is hard to resist, but can dogs eat strawberries? Yes, your dog can enjoy a few strawberries since...

Can Dogs Eat Strawberries

Can Dogs Eat Chick-fil-A? Vet-Reviewed Nutrition Facts & FAQ

Chick-fil-A has been serving up its famous chicken sandwiches and other tasty menu items since 1967. Founder Truett Cathy opened the first Chick-fil-A restaurant in Atlanta’s Greenbrier Shopping Center, and today, the restaurant is the largest quick-service chicken restaurant chain...

Can Dogs Eat Chick-fil-A

Can Dogs Eat Ice Cream? Vet-Verified Health & Safety Guide

Ice cream is a yummy treat many people enjoy, especially during the hot summer months. For dog owners, it’s common to see their pooches begging for a taste, watching on with pleading, imploring eyes, hoping a scoop will suddenly head...

Can Dogs Eat Ice Cream

What Can French Bulldogs Eat? Vet-Reviewed Diet & Foods

According to the American Kennel Club (AKC)1 , the French Bulldog is the most popular breed in the United States, overtaking the beloved Labrador Retriever. As a brachycephalic dog, the Frenchie is vulnerable to several health conditions. Therefore, it behooves...

french bulldog eating or drinking from a bowl

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