1 The 24-year-old is interested in learning how hormonal contraceptives prevent conception. Before deciding which form of contraception to use, she wants to know how these different techniques work. A hormonal contraceptive article explains that they prevent pregnancy by blocking sperm from entering the uterus disrupting implantation of a fertilized egg preventing ovulation thickening cervical mucus

Hormonal contraceptives work in several ways to prevent conception. Here's a step-by-step explanation of each method mentioned in the article:

1. Blocking sperm from entering the uterus: Hormonal contraceptives can alter the environment of the uterus and cervix. The hormones can cause the mucus in the cervix to thicken, which makes it more difficult for sperm to pass through and reach an egg.

2. Disrupting implantation of a fertilized egg: Some hormonal contraceptives can also change the lining of the uterus, making it less likely that a fertilized egg will be able to implant itself and begin to grow.

3. Preventing ovulation: Most hormonal contraceptives work primarily by preventing the ovaries from releasing an egg each month (ovulation). No egg means there's nothing for sperm to fertilize, thus preventing pregnancy.

4. Thickening cervical mucus: As mentioned in the first point, hormonal contraceptives can cause the mucus in the cervix to thicken, creating a barrier that is difficult for sperm to penetrate. This reduces the chance of a sperm reaching and fertilizing an egg.

Each of these methods contributes to the overall effectiveness of hormonal contraceptives in preventing pregnancy.