No, you cannot get pregnant if sperm gets on the outside of your body. Sperm must be deposited directly inside the vagina in order to travel through the cervix and uterus to reach an egg for fertilization. If sperm is left on the outside of the body, it can not enter any opening that would allow it to travel through a woman’s reproductive system. Therefore, even if sperm were present on external areas such as one's labia or pubic area, there is no way for this sperm to cause pregnancy. It is important to understand that even though pregnancy from external contact with sperm is impossible, unprotected sex still poses risks for sexually transmitted infections (STIs). To protect yourself from STIs always practice safe sex by using condoms or other forms of protection when engaging in sexual intercourse.