It will stop bleeding after a while or it will not bleed at all
No, they get pregnant about 3or4 days into the bleed
no they do not it dose not matter
NO
Yes, that's the time they are usually introduced to the male for breeding.
If the female is trying to get pregnant with a male dog then it will go on the males back but if the female dog is going on the males back while pregnant then it may means that they wanted to have another baby.
By mating with a male dog.
She is in heat
No
Sometimes.
doggy style. How did you think they do it?
Yes.
Spaying is the procedure. If the female is in the early stages of pregnancy or is simply suspected to be pregnant, then it's an emergency spay.