"Pulling out before the man ejaculates, known as the withdrawal method, is not a foolproof method for birth control. Some ejaculate (fluid that contains sperm) may be released before the man actually climaxes. In addition, some men may not have the willpower or be able to withdraw in time."
"Yes. Syphilis is a sexually transmitted disease. A person with syphilis can spread the infection during the first two stages of the disease. If you come in contact with an open sore (first stage) or skin rash (second stage), you can pick up the bacteria that cause the infection. If the bacteria enter your body through an opening such as the penis, anus, vagina, mouth, or broken skin, you can get syphilis. If a person has had syphilis for more than two years, it's unlikely that he or she can spread the disease. Don't take a chance. Use a lubricated…"
"A person gets HIV when an infected person's body fluids (blood, semen, fluids from the vagina, or breast milk) enter his or her bloodstream. The virus can enter the blood through linings in the mouth, anus, or sex organs (the penis and vagina), or through broken skin. Both men and women can spread HIV. A person with HIV can feel okay and still transmit the virus to others. Pregnant women with HIV also can pass the virus to their babies. Common ways people get HIV include; sharing a needle to take drugs, having unprotected sex with an infected person You…"