about 6 months, and every 6 months after that until the age it goes through the menopause
Dogs are typically in heat, or "in season," for about 2-4 weeks, although this can vary depending on the individual dog. It is important to monitor and keep track of your dog's heat cycle to prevent unwanted pregnancies.
Female dogs typically start their first heat cycle, also known as coming into season, between 6-12 months of age. The exact timing can vary depending on the size and breed of the dog.
Most dogs come in season approx every 6 months and the first time can be any time from about 7 months of age, They bleed for about 2-3 weeks. It can be less frequently, especially with Pugs, one of my Pug bitches had her first season at 11 months old and comes in season only every 11 months.
It is possible for Dogs to become pregnant from the time of their first season, which is usually between the ages of 6 months and a year. However, allowing a Dog to become pregnant on her first season and at such a young age can be detrimental to the Dogs health. At this age she has not finished growing and so will be stunted as all of her nutrients go to her growing puppies. If you wish to breed from your Dog, wait until she has had at least two seasons. Three years old is said to be the ideal breeding age.
they can get pregnant when they have their first season. In small breeds this is around six months. But in larger breeds it may be at one year of age
Most dogs menstruate (come in season) approx every 6 months and the first time can be any time from about 7 months of age, they bleed for about 2-3 weeks. During this time they can become pregnant so if you don't want to have your female dog(s) pregnant, you need to keep your female dog(s) away from male dogs for this time.
Most female dogs come into season for the first time between 6 and 12 months, although some larger breeds delay until as late as 2 years. Like most mammals, the age that a bitch first comes into season is mostly a function of her current body weight as a proportion of her body weight when fully mature. They then experience estrus about every seven months until old age. Female dogs do not experience menopause, although their cycles will become irregular and fertility becomes unpredictable as they become older. Dogs over around 7 or 8 years are usually considered no longer appropriate for breeding, but can still remain fertile.
Pictographs and petroglyphs of dogs that are found on all continents (except Antarctica) are difficult to "age".
She is a 17 year old junior at Neptune High in the first season.
Bitches typically come into season for the first time between the ages of 6 and 24 months, with the average being around 9-12 months old. It can vary depending on the breed and individual dog.
Female dogs attain puberty at the age of 12-15 months. Though they attain puberty at that age, it is not advisable to have them mate and have puppies at this age. It is better to wait till the bitch is 2 years or more older to have a litter of her own. The litter that may form when she is less than 2 years old may not be fully healthy and would be susceptible to infections.