Which of the following methods is MOST unreliable as a method of preventing pregnancy?

Question

Quizplus · Accepted Answer

Withdrawal (coitus interruptus) is the most unreliable method of preventing pregnancy as it relies on the man's ability to withdraw his penis before ejaculation, which is often difficult to time correctly and can result in unintended pregnancy. The other methods listed (fertility awareness, calendar method, basal body temperature method) are more reliable when used consistently and correctly.

Which of the Following Methods Is MOST Unreliable as a Method