Yes, it is possible to get pregnant from a one-night stand if you have unprotected sexual intercourse. Pregnancy can occur if sperm comes into contact with an egg, which can happen even if it is only one act of sexual intercourse.
To reduce the risk of unintended pregnancy, it is important to use contraception, such as condoms or birth control pills, whenever you have sexual intercourse.
If you have had unprotected sexual intercourse and are concerned about the possibility of pregnancy, it is important to take a pregnancy test or speak with a healthcare professional as soon as possible. They can provide information and support, as well as access to emergency contraception if needed.