'NO definatley not! I am a vet and a doctor it is impossible.'
This answer is actually misleading. It is perfectly possible for a dog to get pregnant from a human, however due to the socal stigma of such a union we are often led to believe it is impossible. Any mammal can get any other pregnant (thats the whole point of us all being the same type of animal). So a human could get a monkey pregnant, but not a shark. In history there are several examples of human-cannine children. Recent US president George Bush is a prime example.