Which of the following is/are natural method(s) of contraception?
Coitus interruptus
Rhythm method
Coitus interruptus and rhythm methods are both natural methods of contraception as they do not make use of any barriers or surgical means to prevent sperm from reaching the egg. Natural birth control methods include specific actions that people can naturally do to help prevent an unintended pregnancy. Natural methods are some of the oldest forms of contraception available. Natural birth control often does not cost anything and usually has no side effects.