COITUS INTERRUPTUS

In this practice, also known as withdrawal or pull-out method, the man
withdraws his penis from the woman’s vagina prior to orgasm and ejaculation. It
is one of the oldest contraceptive methods described.

Advantages: readily available,  inexpensive,    free    of  systemic    side    effects

Disadvantages:  high    failure rate,   no  protection  against STDs,   high    degree  of

discipline  required,   semen   can enter   vagina  and cervical    mucus   prior   to

ejaculation