How Often do Yorkies go Into Heat? [Its Relation With Pregnancy]

We, as Yorkie owners, know that understanding our furry friends’ health and needs is essential for responsible pet ownership. One crucial aspect of caring for female Yorkies is comprehending their heat cycles. 

Yorkie heat cycles, also known as estrus cycles, are a natural part of a female Yorkie’s reproductive system. These cycles occur throughout their adult lives and play a significant role in their ability to conceive and have puppies. As responsible owners, it’s crucial to be well-informed about this aspect of our pets’ lives.

In this comprehensive guide, we’ll explore the frequency, signs, stages, and management of Yorkie heat cycles. We’ll also discuss responsible breeding and pregnancy considerations, answering frequently asked questions about how often do Yorkies go into heat. 

Understanding Yorkie Heat Cycles

Understanding the frequency and timing of Yorkie heat cycles is essential for Yorkie owners. Let’s dive into the various aspects of Yorkie heat cycles, enabling you to care for your furry companion more effectively.

1. The Average Frequency

Yorkie heat cycles typically occur about twice a year, although this can vary from dog to dog. The interval between heat cycles can be approximately 5 to 8 months. 

However, keep in mind that some Yorkies might have irregular cycles, especially during their first year of reaching sexual maturity. Monitoring their heat cycles and keeping track of their duration can help you predict and prepare for future cycles.

2. Factors Affecting the Timing of the First Heat Cycle

The timing of a Yorkie’s first heat cycle depends on various factors, including genetics, size, and overall health. On average, most Yorkies experience their first heat cycle between the ages of 6 to 9 months. 

Smaller Yorkies may enter their first heat a bit earlier, while larger ones might experience it a bit later. As responsible owners, it’s crucial to be prepared for their first heat and be ready to provide extra care and attention during this significant phase.

As Yorkies grow older, their heat cycles may become more regular and predictable. The intervals between heat cycles might stabilize, making it easier for you to predict when they will enter their next heat. However, some individual variations may still occur, so staying observant and noting any changes in their behavior or physical signs is crucial.

3. Heat Cycles in Younger and Older Yorkies

Younger Yorkies may have more irregular heat cycles during the first year or two of reaching sexual maturity. Their cycles may not follow a consistent pattern, making it slightly challenging to predict the exact timing. 

On the other hand, as they grow older and their bodies mature, their heat cycles are likely to become more regular and adhere to a more predictable schedule.

It’s important to remember that each Yorkie is unique, and while general patterns exist, there can be individual variations. Being aware of your Yorkie’s behavior and keeping track of their heat cycles will help you better understand their specific needs during this time.

Signs and Symptoms of Yorkies in Heat

1. Physical Signs (Swelling, Discharge, etc.)

One of the most significant indications that your female Yorkie is in heat is the swelling of her vulva. This swelling, also known as “vaginal edema,” is one of the most apparent and earliest physical signs of a heat cycle. 

At the beginning of the proestrus stage, you may notice mild swelling, which gradually becomes more prominent as the cycle progresses. The swelling is a result of hormonal changes that prepare the reproductive organs for potential mating and pregnancy.

Another physical sign to look out for is a vaginal discharge, which typically occurs during the proestrus stage. Initially, the discharge may be bloody, resembling a light menstrual flow. As the cycle advances, the discharge may change to a straw-colored or pale-yellow appearance. 

The discharge contains pheromones that attract male dogs, signaling your Yorkie’s reproductive readiness.

During the heat cycle, some Yorkies may urinate more frequently than usual. This increased frequency of urination is a natural physiological response to the hormonal changes taking place in their bodies. As a responsible owner, it’s essential to be understanding and patient during this time, as your Yorkie may need more bathroom breaks.

In addition to the above signs, you might also observe your Yorkie attracting male dogs. The pheromones released during her heat cycle can be detected by male dogs from a distance, and they might show increased interest in approaching her. 

To prevent unwanted mating, it’s crucial to keep your Yorkie on a leash or in a controlled environment while outside.

2. Behavioral Changes

Yorkies, like many other dog breeds, may undergo various behavioral changes during their heat cycles. These changes can be attributed to the fluctuations in hormones, which affect their mood and behavior. Some common behavioral changes to watch for during your Yorkie’s heat cycle include:

Restlessness and Agitation

Your typically calm and composed Yorkie may experience restlessness and agitation during her heat cycle. The hormonal changes that occur during this phase can make her more alert and on edge than usual. 

She may seem restless, walking around, and being less settled than her usual self. Some Yorkies may even display signs of anxiety or increased nervousness during this time. Engaging her in gentle activities and offering extra attention may help comfort her during this phase.

Increased Affection

While some Yorkies may become more distant during their heat cycle, others may seek more attention and affection from their owners. You may notice your Yorkie becoming clingy and seeking comfort from you. 

The hormonal changes can make her more emotionally sensitive and in need of comfort and security. During this time, it’s crucial to provide your Yorkie with the extra affection she seeks. 

Excessive Licking

You may observe your Yorkie engaging in excessive licking of her genital area during her heat cycle. This behavior is entirely normal and serves the purpose of keeping herself clean. The increased hormonal activity can lead to more secretion of vaginal fluids, and licking is her natural way of maintaining hygiene.

Marking Behavior

Even if your Yorkie is typically well-house-trained, she may exhibit marking behavior during her heat cycle. Marking involves urinating small amounts in various spots, and it serves as a way for her to communicate her reproductive status to other dogs. 

The pheromones in her urine can signal her readiness to mate. To minimize any potential marking indoors, consider using dog diapers or limiting her access to areas where marking is less desirable.

3. How to Identify When a Yorkie Is Going Into Heat?

Determining when your Yorkie is going into heat is essential for planning and providing appropriate care. While each Yorkie may have slight variations in their heat cycle schedule, there are common signs that indicate the onset of the heat cycle:

Changes in Behavior

One of the initial signs that your Yorkie is going into heat is changes in her behavior. During the proestrus stage, which is the first stage of the heat cycle, your Yorkie may exhibit certain behavioral changes. Watch out for any unusual behavior, such as increased hugging, nervousness, or restlessness.

Physical Signs

Keep an eye on the physical signs mentioned earlier, such as swelling of the vulva and vaginal discharge. These physical changes usually become more noticeable as the heat cycle progresses.

Heat Cycle Schedule

If your Yorkie has had previous heat cycles, you can use the average interval between cycles to estimate when she might go into heat again. While the average interval is about 5 to 8 months, individual variations can occur. By keeping track of her previous heat cycles, you can better predict when the next one is likely to occur.

Interactions with Male Dogs

During the proestrus stage, when your Yorkie starts emitting pheromones, she may attract male dogs and display receptive behavior towards them. If you notice male dogs showing increased interest in her and trying to approach her, it’s a clear indication that she is in heat and ready for potential mating.

If you notice any signs and symptoms of a Yorkie in heat, provide her with appropriate care and ensure a safe and comfortable environment during this phase of their life.

Duration and Stages of Yorkie Heat Cycles

1. Proestrus, Estrus, and Diestrus Stages

Proestrus Stage: The heat cycle in a Yorkie typically begins with the proestrus stage, which lasts for approximately 7 to 10 days. During this phase, hormonal changes trigger the physical and behavioral signs we discussed earlier, such as swelling of the vulva and the presence of vaginal discharge. However, it’s important to note that the female is not yet ready to mate during proestrus.

Estrus Stage: Following proestrus, the Yorkie enters the estrus stage, which is the actual mating phase. This stage generally lasts for around 5 to 9 days. The vaginal discharge may change to a lighter color, and the female becomes more receptive to male dogs. If you have observed interactions with male dogs during this time, it’s essential to closely monitor and control these interactions to prevent unwanted mating.

Diestrus Stage: After estrus, the diestrus stage begins, lasting for approximately 60 to 90 days. This stage occurs whether or not the Yorkie has become pregnant. If mating has not taken place, the female reproductive system will gradually return to its normal state. On the other hand, if pregnancy occurs, the female will proceed to the gestation period.

Anestrus Stage: The anestrus stage is the resting period between heat cycles. This stage typically lasts for around 4 to 5 months. During this time, the female’s reproductive system rests, and she will not experience any heat-related symptoms.

Heat Stage	Average Duration
Proestrus	7 to 10 days
Estrus	5 to 9 days
Diestrus	60 to 90 days
Anestrus	4 to 5 months

Keep in mind that these durations are general averages, and individual variations can occur. Some Yorkies may have slightly shorter or longer heat cycles, and factors such as age, health, and environmental factors can influence the duration.

2. Total Span of the Heat Cycle 

The total length of a Yorkie’s heat cycle, from the beginning of proestrus to the end of diestrus, typically ranges from 2 weeks to a month. However, this can vary depending on individual factors. 

It’s essential to closely monitor your Yorkie’s heat cycle and take note of any changes or irregularities, especially if you are planning for breeding or considering spaying to prevent future heat cycles.

Being knowledgeable about the different stages is necessary to provide appropriate care.

Caring for Yorkie Heat Cycles

Managing your Yorkie’s heat cycles with care and responsibility is essential to ensure her well-being and maintain a harmonious household. Here are practical tips on how to care for your Yorkie during her heat cycle.

1. Hygiene and Cleanliness

Consider giving your Yorkie a sanitary trim around her genital area. This can help to keep the area cleaner and reduce the chances of debris getting trapped in her fur. 

You can also use pet wipes specifically designed for female dogs in heat to remove any discharge, keeping your Yorkie fresh and comfortable. Additionally, you can consider using disposable dog diapers to prevent staining on furniture, carpets, and other household items.

During the heat cycle, keeping an eye on Yorkie is necessary. Monitor Yorkie’s genital area throughout her heat cycle. Regularly check for any signs of irritation or infection. If you notice any redness, swelling, or unusual discharge, consult your veterinarian promptly.

Avoid bathing your Yorkie during her heat cycle unless necessary. Bathing can remove natural odors that play a role in attracting male dogs during the estrus stage. 

Try to keep her away from unwanted distractions. Create a calm and quiet environment for your Yorkie during her heat cycle. Reducing stress can be beneficial for her overall well-being during this sensitive time.

2. Exercising (Even in Heat)

Regular exercise is crucial for your Yorkie’s overall health and well-being, even during her heat cycle. However, it’s essential to make some adjustments to her exercise routine to ensure her safety and comfort during this sensitive time. 

• Opt for shorter walks than usual during her heat cycle. 
• Keep your Yorkie in a safe environment, away from male dogs. 
• Engage her in indoor activities and play sessions to keep her mentally stimulated and physically active.
• Pay close attention to your Yorkie’s energy levels during her heat cycle.
• Ensure your Yorkie gets enough rest during her heat cycle. 
• Keep your Yorkie well-hydrated during and after exercise by providing her with fresh water.

3. Observing Behavioral Changes

Behavioral changes due to hormonal fluctuations may occur during the Yorkies’ heat cycle. These changes can affect her mood and temperament. Hence, it’s essential to handle these behavioral changes with care and understanding. 

If you notice that your Yorkie is seeking more attention from you, then this is a sign that your Yorkie may be uncomfortable due to hormonal changes. Spend quality time with her, providing extra love and attention to help her feel secure.

Avoid making significant changes to her routine or environment during her heat cycle, as this can add stress to her already hormonally charged state.

Use positive reinforcement techniques to reward good behavior and help her cope with any anxiety or restlessness.

4. Spaying a Yorkie

If you do not plan to breed your Yorkie, spaying is a preventive measure to consider. Spaying, or ovariohysterectomy, involves removing the ovaries and uterus, preventing future heat cycles and the risk of unplanned pregnancies. Spaying can also reduce the risk of certain health issues, such as uterine infections and mammary tumors.

Consult with your veterinarian to discuss the appropriate timing for spaying your Yorkie. It’s generally recommended to spay before the first heat cycle to maximize the health benefits. However, your veterinarian will consider your Yorkie’s individual health and circumstances before making a recommendation.

Every Yorkie owner should watch this video to learn about Yorkie periods and care.

Responsible Breeding and Pregnancy Considerations

Responsible breeding is crucial to maintain the overall health and breed standard of Yorkies. It involves thoughtful planning, selecting suitable breeding pairs, and ensuring that both the sire (male Yorkie) and dam have no hereditary health issues that could be passed on to the offspring. 

Irresponsible breeding practices can contribute to overpopulation, genetic problems, and health complications in Yorkies and other dog breeds.

Deciding when to breed a Yorkie requires careful consideration. Generally, Yorkies reach sexual maturity and have their first heat cycle around six to nine months of age. 

However, it’s advisable to wait until the second or third heat cycle to breed, allowing the dam to fully mature physically and emotionally. Breeding should only be pursued if the dam is healthy, well-socialized, and meets the breed standard. 

Frequently Asked Questions (FAQs)

1. What Time of Year Do Yorkies Go in Heat? 

The timing of a Yorkie’s heat cycle can vary, but they generally experience their first heat cycle between the ages of six to nine months. After the first heat, they typically go into heat every five to eight months. 

However, individual variations can occur, and some Yorkies may have irregular heat cycles. As for the time of year, there is no specific season when Yorkies go into heat. It can happen at any time, regardless of the season.

2. Can a Yorkie Get Pregnant When Not in Heat? 

No, a Yorkie cannot get pregnant when she is not in heat. Pregnancy in dogs can only occur during the estrus stage of the heat cycle when the female is fertile and receptive to mating. During the other stages of the heat cycle, such as proestrus and diestrus, the female is not fertile and cannot conceive.

3. How Long Does a Yorkie Stay in Heat? 

The duration of a Yorkie’s heat cycle typically lasts for about two to three weeks. However, it can vary between individual dogs. The heat cycle is divided into several stages, including proestrus, estrus, and diestrus, with each stage having different signs and lengths. 

The entire heat cycle, from the beginning of proestrus to the end of diestrus, usually lasts for approximately 21 to 28 days.

4. When Can a Yorkie Get Pregnant? 

A Yorkie can get pregnant during the estrus stage of her heat cycle, which usually occurs around the second week of the cycle. During this stage, her estrogen levels peak, and she is fertile and ready for mating. It’s essential to monitor her closely during this time if you are not planning to breed her to prevent accidental pregnancy.

5. What Are the Signs of a Female Yorkie in Heat? 

When a female Yorkie is in heat, there are several signs to look out for. These signs include swelling of the vulva, vaginal discharge that may start off as bloody and transition to a lighter color, increased urination, and behavioral changes such as restlessness or clinginess. 

Additionally, during the estrus stage of the heat cycle, the female Yorkie may attract male dogs and display receptive behavior.

By being aware of the signs and symptoms, as well as the different stages and duration of the heat cycle, owners can provide appropriate care and attention to their beloved pets. Maintaining hygiene and cleanliness, adjusting exercise routines, and handling behavioral changes with patience and understanding are crucial during this time.

Summary – How Often do Yorkies go Into Heat?

The frequency of Yorkies going into heat can range from 5 to 8 months, influenced by genetics, size, and overall health. Understanding their heat cycles is vital for responsible ownership, particularly concerning pregnancy. Careful monitoring of physical and behavioral signs, managing hygiene, and considering spaying are essential aspects of caring for Yorkies during their heat cycles. Responsible breeding practices are emphasized to maintain breed standards and avoid health complications.