The question is unclear.
1) a dog that's spayed can't get pregnant.
2) spaying a dog that is already pregnant would also mean performing an abortion. Don't think a veterinarian would like that much unless very early in the pregnancy
Yes, it's possible.
Yes
A puppy should be spayed a soon a possible. You can spay a puppy or dog even when there having there cycle.
No, a human and dog do not impregnate each other.
I suggest that your dog has been spayed. If your dog has been spayed she will not go into heat.
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.
1 1/4 to 1 1/2 times more than before pregnancy
You probably dont have to but it would be best if you did get her spayed when you get the dog spayed there is a recovery proscess
Because if your dog doesn't get spayed he or she will make babies and what if the babies when they are grown up have other babies? And more babies so its really that good to make your dog spayed or they might have MORE babies
yes
you get them spayed or nutered.
Spayed females and neutered males cannot reproduce.