Withdrawal is exactly what it sounds like: when the man feels that he is about to ejaculate, he pulls himself out of the woman, so that the semen doesn't enter the vagina. Withdrawal is fine and dandy if you're using it with another form of birth control for added protection, but it should NEVER be your sole form of birth control. First of all, withdrawal requires more vigorous self-control than most men possess (and let's not forget those one-minute wonders out there who hardly know themselves when the big moment arrives). Second of all, even if your partner does pull out before he ejaculates, there is enough sperm in pre-ejaculate to cause pregnancy. So even if you trust him, his early swimmers can still cause you problems.

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