NO
No. That is not possible.
No, animal semen cannot get a human female pregnant. Only human semen can impregnate a human female.
No, a human female cannot get pregnant by sucking the male's penis.
No it is not possible biologically for a human to impregnate any other species or viceversa. So to answer your question simply, "No a boy cannot get a female pony (mare) pregnant."
Female and fertile.
No. There is no possible way for a guy to be pregnant. He may have been born with the boy genitals and converted to female genitals and now looks like a woman, but he cannot become pregnant. It is only possible for females to be pregnant (if you are human). As for animals, I'm not 100% sure. I know that male sea horses get pregnant and the female sea horses do not.
The male seahorses, seadragons and the pipefish can become pregnant. It is theoretically possible for human males to have an ectopic pregnancy, but it would be extremely difficult.
A female human does not get "fixed" they have what is known as a hysterectomy or the removal of the uterus. In this case no, but this operation is done only in extreme necessity.
Well, a female dog can get pregnant as early as 6 months...but it's not recommended to let a dog that young get pregnant, it's like letting a 10-12 year old human get pregnant...it's possible biologically but not good.
It is not possible to get pregnancy from the dog to human female. Chromosomes do not allow such pregnancy to take place.
No, the human female cannot get pregnant when semen enters through her mouth.
yes