coitus interruptus, pulling out, withdrawal method, onanism - a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation

natural family planning - any of several methods of family planning that do not involve sterilization or contraceptive devices or drugs; coitus is avoided during the fertile time of a woman's menstrual cycle

contraception, contraceptive method - birth control by the use of devices (diaphragm or intrauterine device or condom) or drugs or surgery

planning - an act of formulating a program for a definite course of action; "the planning was more fun than the trip itself"