Yes. Sperm can stay alive in the woman's body for up to seven days. This means that it can actually be quite tricky for a woman to identify exactly which "event" caused her to become pregnant.
Moreover, it means that you can get pregnant even if you have sex on your period. This is because ovulation is unpredictable. Most women ovulate right in the middle of their cycle, so on day 14 after her period started, and day 14 before her next period is due. If a woman's cycle is other than the mythical 28 days, the best guess is that she will ovulate on day 14 before her period is due. However, the human body doesn't like to be so predictable. So woman can and often do ovulate a few days (or more) before or after when they might expect to.
This is why "the rhythm method" doesn't work. A woman can have unprotected sex on day 3 of her cycle (still in mid-flow) and then get pregnant if she ovulates just a few days earlier than expected.
Moreover, it means that you can get pregnant even if you have sex on your period. This is because ovulation is unpredictable. Most women ovulate right in the middle of their cycle, so on day 14 after her period started, and day 14 before her next period is due. If a woman's cycle is other than the mythical 28 days, the best guess is that she will ovulate on day 14 before her period is due. However, the human body doesn't like to be so predictable. So woman can and often do ovulate a few days (or more) before or after when they might expect to.
This is why "the rhythm method" doesn't work. A woman can have unprotected sex on day 3 of her cycle (still in mid-flow) and then get pregnant if she ovulates just a few days earlier than expected.
