Take her to the vet and get her an X-ray. It will tell how many pups and when they need to arrive.
Yes, in fact it makes it easier to have puppies now that you own both the male and female dog.
Spaying is the removal of the ovaries from a female dog. No dog that is spayed can have puppies. No female dog can have puppies with another female dog. If you are asking about a male dog, the correct term is neutered, not spayed.
Yes it would as long as it was already pregnant.
Yes
a male and female will have sex
vitamins
This is possible, yes.
A sire is a male dog who is the father of a litter of puppies.
A male dog is a Boy and a female dog is a girl. If they breed, then they could have puppies.
Puppies are carried in the middle abdomen of a female dog. After the puppies are born, the mother will move the puppies by carrying them by their necks.
YES they definitely can. from lack of nutrition and their immune system can also be weakened.
i have a male dog, i need to know how many puppies i have to receive when the female get birth Depends on what agreement you have with the bitch's owners.