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Professional Dog Pregnancy Scanning and Breeding Advice

Inducing a Bitch's Season

Accurate Scanning and conflicting results

Please don't wait until there is a problem

Artificial Insemination

The Dangers of Leaving an In-Season Bitch Unsupervised with a Male Dog

Welcome

Over the years, I have had the privilege of helping hundreds of breeders and pet owners through pregnancy scanning, whelping preparation, and breeding-related concerns. My goal has always been simple: to provide accurate information, affordable scanning services, and practical support when owners need it most.

I regularly encounter situations where owners have received conflicting information, inaccurate scan results, or simply need reassurance during what can be an anxious time. The articles below share some of those experiences and the lessons that can be learned from them.

Should You Induce Your Bitch’s Season?

Every year I speak to breeders who are considering ways to encourage a bitch to come into season sooner than nature intended.
While hormonal treatments do exist, they should never be viewed as a routine breeding tool.
Certain medications can interfere with the reproductive cycle and may trigger a season in some bitches. However, success rates vary considerably, induced seasons are often less fertile than natural seasons, and there can be significant long-term consequences for reproductive health.
Young bitches are particularly vulnerable, and inappropriate use of hormonal treatments may result in irregular seasons, reduced fertility, or other reproductive complications later in life.
In many cases, patience is the safest and most effective option.
Before considering medical intervention, breeders should focus on:

• Maintaining excellent nutrition
• Providing regular exercise
• Ensuring appropriate body condition
• Allowing natural exposure to male dogs
• Seeking veterinary advice if there are genuine reproductive concerns
I am personally a strong believer in allowing nature to take its course wherever possible. Many bitches simply develop at their own pace, and forcing the issue can sometimes create more problems than it solves.

The Importance of Accurate Pregnancy Scanning

One of the most common concerns I hear from clients is confusion after receiving conflicting scan results.
Recently, I met an owner whose bitch had undergone three separate scans and received three completely different opinions. One scanner was unsure, another predicted a singleton puppy, while a third estimated four puppies.
The bitch was not pregnant.

One case that particularly stands out involved a regular client whose bitch I scanned at approximately 30 days gestation. During the examination I confirmed pregnancy, although it appeared likely to be a singleton litter. As I routinely recommend with suspected singleton pregnancies, I advised a follow-up scan.

The client subsequently sought a second opinion elsewhere and was informed that the bitch was carrying five puppies. A further scan was performed by the same scanner at approximately eight weeks gestation, and the owner was again told there were five puppies present...........The bitch ultimately gave birth to a single puppy.

Concerned that there may have been additional puppies remaining, the owners contacted the scanner, who attended the property after the whelping and suggested that the missing four puppies had been reabsorbed. This explanation is not consistent with normal foetal development. By eight weeks gestation, foetal skeletons are fully developed and calcified. Whilst reabsorption can occur during the earlier stages of pregnancy, before calcification has taken place, it is not possible for almost fully formed puppies to simply be reabsorbed by the bitch's body. This case highlights two important points. Firstly, ultrasound is an excellent tool for confirming pregnancy but should not be relied upon for exact puppy counts. Secondly, owners should be cautious of anyone claiming absolute certainty regarding litter size, particularly during the later stages of pregnancy when the size of the puppies makes accurate counting increasingly difficult.

Unfortunately, stories like these are becoming increasingly common. Ultrasound scanning is a skill that requires both quality equipment and extensive experience. Early pregnancy diagnosis can be challenging, and it is important that owners understand the limitations of scanning at different stages of gestation.
My approach is always to provide honest information. If I am confident in what I see, I will explain my findings clearly. If a scan is inconclusive, I will discuss the reasons and advise the most appropriate next steps.
Pregnancy scanning should never be about guessing. It should be about providing accurate information that helps owners make informed decisions.

More Than Pregnancy: When Ultrasound Saves Lives

Many people think of ultrasound solely as a way of confirming pregnancy.
In reality, scanning can sometimes identify serious medical conditions that require urgent veterinary attention.
One memorable case involved a bitch who had been mated approximately four weeks previously. She appeared bright, healthy and completely normal at home.
However, during the scan I identified significant abnormalities consistent with pyometra, a potentially life-threatening uterine infection.
The owner sought immediate veterinary care, and emergency surgery confirmed the diagnosis.
Another case involved a bitch referred for a suspected pregnancy issue. During the scan it became clear that the bladder was severely abnormal. Following veterinary investigation, a perforated bladder was diagnosed. The attending veterinary surgeon advised that the most likely cause was trauma associated with an artificial insemination procedure, which had been performed shortly before the bitch became unwell.
Cases such as these reinforce why experience matters.
A pregnancy scan is not simply about counting puppies. It is also about recognising when something does not look right and ensuring owners receive appropriate veterinary support as quickly as possible.

Artificial Insemination – Is It Always the Best Option?

Artificial insemination (AI) has become increasingly popular in recent years, particularly where distance, availability, or behavioural issues make natural mating difficult.

Whilst AI can be a useful breeding tool in the right circumstances, it is not a guarantee of pregnancy. Success depends on many factors, including semen quality, correct timing, fertility of both the dog and bitch, and the experience of the person carrying out the procedure.

In my experience, many owners assume that if a mating has not been successful, the solution is to move straight to artificial insemination. However, this may not address the underlying reason why a bitch has failed to conceive.

Before considering AI, I would always recommend looking at the basics first:

Many breeders also use wheatgerm oil as part of their pre-breeding preparation. Whilst scientific evidence is limited, it has long been popular within breeding circles. Personally, I recommend starting approximately one month before the bitch is due into season and continuing until around three weeks after mating. Some breeders choose to increase the dose during mating days, although owners should always follow product guidance and consult their veterinary surgeon if unsure.

It is also important to ensure that any artificial insemination procedure is carried out legally and by appropriately qualified professionals. Since changes to UK legislation, certain artificial insemination procedures may only be performed by a veterinary surgeon.

As with all aspects of breeding, the welfare of the dogs involved should always be the primary consideration. There is rarely a substitute for careful planning, accurate timing, and sound breeding decisions.

Choosing the Right Person for Pregnancy Scanning

The growing availability of low-cost ultrasound equipment means more people than ever are offering pregnancy scanning services.
While accessibility can be positive, experience remains essential.
I am frequently contacted by owners asking me to interpret scans performed elsewhere using photographs sent by text message or social media.
Unfortunately, it is impossible to provide an accurate diagnosis from a poor-quality image alone.
A professional assessment requires:
• Seeing the animal in person
• Performing a complete scan
• Understanding reproductive anatomy
• Recognising abnormalities
• Knowing when veterinary referral is necessary
When selecting a scanner, owners should not be afraid to ask about training, experience and insurance cover.
Your dog’s welfare should always come first.

Supporting Owners Beyond the Scan

For me, pregnancy scanning has never been simply about performing an ultrasound and sending clients on their way.
Many owners are experiencing breeding or whelping for the first time and understandably have questions and concerns.
Over the years I have spent countless hours supporting clients by telephone, providing advice during labour, helping owners prepare for whelping and, where possible, lending essential equipment when needed.
I understand how stressful breeding can be, particularly when complications arise.
That is why I always allow plenty of time for appointments, encourage questions and aim to provide ongoing support whenever possible.
I am incredibly grateful to the many loyal clients who continue to place their trust in me and appreciate the service I provide.
If you need pregnancy scanning, breeding advice or simply reassurance throughout the process, I am always happy to help.

Below is the image of a pregnancy scan that was abnormal and referred to the vet where a pyometra infection was confirmed

 

The Dangers of Leaving an In-Season Bitch Unsupervised with a Male Dog

Many people assume that allowing a male dog and an in-season bitch to "work things out naturally" is the easiest and most natural approach to breeding. While dogs have reproduced without human intervention for thousands of years, domestic breeding carries responsibilities that go far beyond simply allowing two dogs access to one another. Leaving an in-season bitch unsupervised with a male dog can lead to a range of welfare, health, behavioural, and breeding problems that responsible owners should carefully consider.

When a bitch is in standing heat, a determined male may attempt to mate her repeatedly over several days. Without supervision, there is no way to monitor how many times mating occurs. Excessive matings can leave both dogs physically exhausted and increase the risk of injury, particularly if one or both dogs are inexperienced.

Repeated mating does not necessarily increase the chances of a successful pregnancy. In fact, excessive breeding can place unnecessary stress on the dogs while providing little additional benefit.

Mating is not always a smooth process. During the mating tie, dogs are physically connected for a period that can range from a few minutes to over half an hour. If either dog becomes frightened, attempts to separate, or is disturbed, serious injuries can occur.

Unsupervised matings may result in:

A knowledgeable handler can help keep both dogs calm and prevent accidents should problems arise.

Successful breeding often depends on timing. Not every day of a bitch's season is equally fertile. Allowing random matings throughout the season removes any ability to monitor when breeding occurred and makes it difficult to estimate due dates accurately. Responsible breeders often use progesterone testing, behavioural observations, and careful record keeping to determine optimal mating times. Random matings can result in missed opportunities, poor conception rates, or uncertainty about pregnancy dates.

Although relatively uncommon, reproductive infections can be transmitted during mating. Responsible breeders usually ensure both dogs are healthy before breeding takes place.

Uncontrolled and repeated matings increase exposure and can introduce bacteria into the reproductive tract. This may contribute to fertility issues or uterine infections in some cases.

Not all bitches welcome a male's attention throughout their season. During some stages, a bitch may actively reject mating attempts. If she has no opportunity to escape persistent advances from a male dog, she may experience significant stress.

This can lead to:

Supervision allows owners to separate the dogs when necessary and ensure interactions remain safe and appropriate.

A bitch can become pregnant by more than one male during the same season. If access is not carefully controlled and there is any possibility of other males reaching the bitch, a litter could have multiple fathers.

This creates complications for pedigree registration, breeding records, genetic testing, and future breeding plans.

When exact mating dates are unknown, predicting the due date becomes much more difficult. Since gestation length is often calculated from the time of ovulation or mating, uncertainty can make

Monitor pregnancy progress

Accurate breeding records are an important part of responsible canine management.

Even when breeding is planned, experienced breeders rarely leave dogs together continuously. Instead, they supervise introductions, monitor behaviour, record mating dates, and ensure both animals remain safe throughout the process.

Supervision allows owners to:

Please don't wait until there is a problem

I seem to be getting an increasing number of last-minute calls from owners when their bitch is in labour or when something has already gone wrong.

On one occasion, I was contacted on a Sunday evening by someone who had taken their bitch elsewhere for a pregnancy scan and had been told she was carrying three puppies. The bitch had given birth to one puppy, sadly born sleeping, and nothing else was happening. The owner didn't want to pay emergency vet fees and asked if I could make a two hour round trip at 8pm on a Sunday evening because they thought I would be cheaper than going to a vet.

On another occasion, I was contacted by someone who believed their bitch was in labour and was concerned that a puppy may be stuck. Again, I hadn't scanned the bitch or been involved at any stage of the pregnancy, but I was being asked to go out and "check her over" because their vet was discussing a possible C-section.

Please understand that pregnancy scanning is not a substitute for veterinary care, particularly once a bitch is in labour and there is concern that a puppy may be stuck or she is failing to progress.

I no longer offer home visits, and I cannot be called out at the last minute to assess a bitch in a potential whelping emergency, particularly one I have never seen or scanned before.

If you choose to have your bitch scanned elsewhere, that is absolutely fine, but please make sure you have a plan in place for whelping and know which veterinary practice you will contact in an emergency. Please don't wait until something goes wrong and then start looking for a cheaper alternative to emergency veterinary care.

A scan can confirm pregnancy and, at the appropriate stage, give an estimated puppy count. It cannot guarantee a trouble-free whelping, and if you are concerned that your bitch is in difficulty, your first call should be to your vet.

In Summary

While allowing dogs to mate naturally may seem straightforward, leaving an in-season bitch unsupervised with a male dog carries significant risks. From physical injuries and excessive matings to welfare concerns and poor breeding management, unsupervised access can create avoidable problems for both dogs and their future offspring. Responsible breeding is about more than producing puppies. It involves careful planning, health screening, supervision, and a commitment to safeguarding the welfare of both the bitch and the male dog throughout the breeding process.

 

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