depends on the breed of dog and age. on average about once every six months.
Great Pyrenees have the same length of pregnancy as any other dog - about 58 to 62 days.
She'll start bleeding just like a human.
On average dogs go into season, or heat, every six months. However, some dogs go into heat more frequently than others.
it has to heat itself up first
Most dogs are diestrous, meaning they go into heat twice a year. The usual separation between the two periods of estrus is about six months.
You can't make a dog come into heat. They will have their first heat roughly 6-12 months, possible shorter or possibly longer. No 'breeder' mates their Rottweiler on the 1st or the 2nd heat. The third is best. Dogs have a heat every 6 months.
No. Many dogs that go in to heat earlier are the ones that are bigger and can mature faster. The bigger breeds, such as a great dane or so, would go into heat much faster then a chihuahua for example. This si because the great dane can mature faster then the chihuahua.
All dogs have typically two estrus or heat cycles a year about 6 months apart that last 2-3 weeks For a Great Dane, 9 to 12 months is not unusual.
you have to wait for them to come into heat If the female is in heat she will eventually come around.
Looks like the Heat will.
The best way to recognize when your female dog has her first heat cycle is to spot the drops of blood that will come from her rear. Her female parts will also appear swollen.
A 16 month old boxer that has not had her first heat may have some type of medical problem, such as an underactive thyroid. It is also possible that she has had a "silent heat," which means that she did come into heat but showed very few signs of it. A silent heat is very easy to miss but is perfectly normal.