Alicia took Plan B 52 hours after unprotected sex. What is the probability that Plan B will prevent a pregnancy if an egg has been fertilized?

Question

Quizplus · Accepted Answer

Plan B is most effective when taken within 72 hours after unprotected sex, but its effectiveness decreases over time. If taken within 72 hours, it can reduce the risk of pregnancy by up to 89%, but if fertilization has already occurred, its effectiveness is significantly reduced. The probability of preventing pregnancy if fertilization has occurred is around 58%.

Alicia Took Plan B 52 Hours After Unprotected Sex