Level 1: Can eating sperm cause pregnancy? During the process, the man ejaculates semen, which contains sperm. If a woman comes into contact with male semen at this time, she may become pregnant. However, if a woman swallows a man\’s semen through oral sex, it will not lead to pregnancy. Because the pH and temperature in the digestive tract are not suitable for sperm to survive. Level 2: Eating semen