Question

How does emergency contraception reduce the risk of pregnancy?

Answer 1

Emergency contraception pills use hormones or medications that block pregnancy. ... The emergency-use pills mainly work by stopping the release of an egg. The pills also may stop sperm from fertilizing the egg. They also may prevent a fertilized egg from implanting in the uterus.

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Answer 2

Emergency contraception reduces the risk of pregnancy because it delays the movement of the tubes, which is where the egg goes from the ovary to the uterus against the sperm.

Step-by-step explanation:

Emergency contraception may inhibit or only delay ovulation. This is because this type of contraceptive contains a high concentration of progesterone. This hormone delays the movement of the tubes, which is where the egg goes from the ovary to the uterus against the sperm - and the sperm comes from the uterus through the tube to meet the egg. This also makes it difficult for sperm to penetrate the cervical mucus, as progesterone alters the consistency of the mucus, making the environment hostile to sperm.