Is sperm still alive if you wipe off your hands after you ejaculate?
Yes!!!! Sperm is microscopic and therefore cannot be "wiped off".
yes but sperm needs the nutrients from the semen to stay alive, so your clearlly wiping the semen off so the sperm dies
anyway sperm dies about 5 minutes after it hits the air because they will not like the temperature of the hot area which is why your ball sack is not on the inside of your body.
Yes, pre-ejaculate can result in pregnancy. Pre-ejaculate itself doesn't contain sperm, but if the man ejaculates and doesn't urinate sperm can remain in the urethra and thus be carried along by the pre-ejaculate. Although the number of sperm that could be in pre-ejaculate are only small compared to how many are in ejaculate, there is still a risk of pregnancy.