Only if semen is on his fingertips.
Yes. A tired man can still produce semen. It might take more effort but as long as he can put semen into a woman's vagina, she can become pregnant.
Not with his own semen. Though if he came into contact with another man's semen (having sex with another man or even a woman who recently had sex), then the "foreign" semen could impregnate the woman.
Yes.
Felching is a sexual practice in which semen is sucked out of another person's anus. The individual sucking the semen may swallow it or pass it, mouth to mouth, to a partner. The term for the latter act is snowballing. a man drinking his own semen out of his partners anus
The only way for a female to get pregnant is for a man to ejaculate semen into the woman's vagina. A girl can't get pregnant from a girl; a guy cannot get pregnant from a girl.
Only if they have a drop of a man's (or boy's) semen on their finger.
Viagra will have no effect on the semen and chances of getting pregnant
No. As long as there is semen ejaculated into the vagina, there are a possibility of pregancy.
As long as a man is able to ejaculate and deposit semen inside a woman's vagina, the length of his penis usually does not affect the ability to get a female pregnant. Sperm travel through the ejaculated semen to reach the woman's egg for fertilization.
No. Male urine does not carry semen the fluid that contains sperm. There is not possibility of pregnancy from urine.
Not with his own semen. Though if he came into contact with another man's semen (having sex with another man or even a woman who recently had sex), then the "foreign" semen could impregnate the woman.