condom

Condoms are safe and effective method of birth control when used regularly and correctly. Condom is best used by couple that are motivated and experience. Condoms also provide same protection against gonorrhea, syphilis, herpes and chlamydia. Because condoms are often linked to prostitution and venereal disease they are unacceptable to same people. (sources)
How to use a condom :proper use of the condom is need for is it's effectiveness. It is rolled over the tip of the erect penis and then unrolled all the way down the penis. It is advised that the condom be put on before the erect penis touches the genitals area so that sperm present in(sources) the man should grasp the ring of the condom firmly when he withraws his penis from the vagina so that the sperm do not spill out.
Advantage of condoms ::
1:convenience
2:ease of use
3:no side effects
4:prevention of some infection

Disadvantage of condoms
1:interrupt lovemaking
2:reduce sensation for some men and women
3:dont always stay on