Is one day intercourse lead to pregnancy?

Yes, one-day intercourse can lead to pregnancy. Pregnancy can occur when a sperm fertilizes an egg. Sperm can live inside a woman's body for up to 5 days, and an egg can survive for up to 24 hours after ovulation. This means that if you have intercourse on the same day that you ovulate, or in the days leading up to ovulation, there is a chance that you could become pregnant.

The likelihood of pregnancy depends on a number of factors, including the timing of intercourse, the frequency of intercourse, and the woman's age and fertility. However, even one-time intercourse can result in pregnancy, so it is important to use contraception if you do not want to become pregnant.