NO, it lowers the chance. When guys take showers, the warm/hot water affects the semen and the sperm.
Sperm vs. Semen
Some people use the terms sperm and semen interchangeably. But sperm cells are only one component. Semen also contains substances from the prostate and a pair of rabbit ear-shaped organs inside the pelvis called the seminal vesicles.
Sperm cells - which are made in the testicles - need lots of high-octane fuel to whip their tails. Lucky for them (and us), sperm get the fuel they need in the form of sugar fructose, which is supplied by the seminal vesicles. Fluid from the prostate contains chemicals that cause semen to liquefy once it's inside the female. Without it, sperm would be locked in place and unable to swim. Sperm cells are carried out of the male body in a fluid known as semen. Human sperm cells can survive within the female reproductive tract for more than 5 days post coitus. Semen is produced in the seminal vesicles, prostate gland and urethral glands.