"Natural family planning advocates argue that only “natural” birth control methods such as the rhythm method (avoiding intercourse when the chances of conception are high) and coitus interruptus (withdrawing the penis from the vagina prior to ejaculation) are acceptable to God. They contrast these methods to the “artificial” methods of contraceptives, such as condoms, foams, and the pill. The difference between these two positions rests on the distinction between “natural” and “artificial” forms of birth control—a distinction that is fuzzy, forced, and ultimately, unhelpful."