With a population of about 100 million people, the Philippines is the seventh-most populated country in Asia and the 12th most populated country in the world. An additional 12 million Filipinos live overseas, comprising one of the world's largest diasporas.
The Reproductive Cycle in Dogs. In order to answer the question, how long are dogs pregnant, you first need to understand the dog reproductive cycle. Intact female dogs go into heat approximately every six months, although this can vary depending on the dog and the breed. The heat cycle lasts 18-to-21 days and is broken into four distinct stages.
Call your vet if your pregnant dog struggles for over 60 minutes with no puppies produced. If more than four hours pass between the delivery of each pup, you should call your vet. If your dog is in obvious pain or she is beyond 70 days of pregnancy, a vet should be notified. Pregnant dogs can often have a high temperature during and after the birth of her puppies and this is normal. With most dog pregnancies, the dog will do all the work and you can enjoy the recreation of life.