Question

For how much time the sperms are alive after sex. Mainly for pregency.

Answer 1

The answer depends on a number of things, but the most important is where the sperm are located.

On a dry surface, such as clothing or bedding, sperm are dead by the time the semen has dried. In water, such as a warm bath or hot tub, they'll likely live longer because they thrive in warm, wet places. But the odds that sperm in a tub of water will find their way inside a woman's body and cause her to get pregnant are extremely low.

When sperm are inside a woman's body, they can live for up to 5 days. If you're a man and you have sex even a few days before your partner ovulates, there's chance she may get pregnant.