In short, your dog cannot become pregnant when not in heat, but many dog-owners have a hard time identifying and keeping track of when their pet is fertile.
On average, puberty (or sexual maturity) is reached at about six months of age, but this can vary by breed. Smaller breeds tend to have their first estrous cycle at an earlier age, while large and giant breeds may not come into heat for the first time until they reach eighteen months to two years of age.
Silent Heat Cycle
This occurs when your female will have a heat cycle without the normal symptoms such as bleeding and swelling of the vulva. Females will still be receptive to males and can become pregnant. Your veterinarian can check for a silent heat cycle by performing vaginal cytology and progesterone assays.
There's a relatively small window when your dog is most fertile during the heat cycle; it may begin about nine or ten days after she goes into heat and lasts about five days. However, she can become pregnant until the end of the cycle.
Swollen Vulva
Located just below the anus, your dog's vulva will turn redder in color and increase in size — often 2 to 3 times its normal size.
The dog estrous cycle is made up of four stages. These are the proestrus, estrus, diestrus, and anestrus. The proestrus is the most obvious stage, while the other stages are more subtle.
Some signs of a female dog going into heat may include lower energy levels, more aggressive behavior, differences in leg-raising while urinating, urinating more often than usual, and even running away from home. This is unlike male dogs, who do not experience heat cycles.
Some dogs experience a condition called silent heat, in which they do ovulate but the characteristic signs of being in heat, such as vulvar swelling and discharge, are not observed. Although rare, some dogs may also have an autoimmune disease that affects their ovaries and interferes with estrous cycling.
Q: Should I let my dog have a heat before I spay her? A: Medically, it's better to spay your dog before their first heat. It greatly reduces the risk of mammary tumors. People who wait to spay their dogs until after their second heat greatly increase the risk of mammary tumors in their pets.
We know that spaying before the first heat cycle reduces the incidence of mammary cancer by 99.5% while spaying after the first heat cycle but before the second decreases the incidence by 92%. Spaying after the second heat cycle decreases the incidence rate by 74%.
During breeding, the female will stand with her feet planted and her tail off to the side. The male will mount her, and after breeding will remain attached to the female for 5-20 minutes; this is called the tie.
In a silent heat, all external physical signs (like vaginal bleeding, discharge, or swollen vulva) are so minimal that you don't see them. Not only that, but her behavior might not change—she may show absolutely no interest in male dogs, either.
Breeding and getting your dog pregnant on her first heat can also pose health risks for both your dog and her pups, like bad genes being passed on, and behavioral changes like aggression.
A dog in heat can bleed for around seven to 10 days. During this first stage of the reproductive cycle, the female will not accept a male.
You might be tempted to try to separate dogs when they're stuck in a copulatory tie during mating. But hold up: Pulling dogs apart can seriously injure them and doing so won't stop a pregnancy from occurring. Instead, encourage your dog to remain calm.
Dogs new to mating may experience a bit of anxiety at being locked together, but it's a natural process. Help your dog to remain calm and stand still until the two can safely separate. This will occur on its own once the male dog's arousal subsides.
How many times should a dog mate to get pregnant? Although a dog can get pregnant from one mating, most stud dog owners will recommend the dogs mate two (or even three times), usually 24 – 48 hours apart each time, but this may depend on whether a tie or a slip mating has been achieved.
The short answer is- yes it will. Spaying and neutering both involve making permanent changes to your dog's reproductive system, whether male or female. Dogs' hormonal systems change based on their reproductive system, just like in humans! Hormones are in part responsible for some of our behaviors.
If we spay a female dog before her first estrus, or “heat,” we essentially eliminate her chances of developing mammary cancer. This benefit holds true for any female dog spayed before the age of 2, yet incidence of mammary cancer increases with each estrus period.
The short answer is that no, your dog isn't likely to be less hyperactive after getting spayed or neutered. It won't change their personality much, if at all. Each dog has its own positive and negative social habits.
When should I spay my female dog? We recommend waiting until your dog is at least over 6 months and likely even older for larger dogs. The benefits are much more pronounced in larger dogs, but there is not a lot of difference for lap dogs.
Yes there is a blood test where we check the progesterone levels in their body.
While there are a lot of variables, spaying will typically run $50–$500. Costs at the low end of that spectrum are typically subsidized through a public agency. "There are many low-cost spay and neuter clinics around the country to help make the process more accessible to all pet owners," Moore says.