Contraceptives are methods or devices used to prevent pregnancy during sexual intercourse. They work by either blocking sperm from reaching an egg, preventing ovulation, or creating an environment that is not conducive to fertilization. Common types of contraceptives include birth control pills, condoms, IUDs, and implants. In addition to preventing pregnancy, some contraceptives can also help regulate menstrual cycles and reduce menstrual pain. It's important for individuals to choose a method that suits their health needs and lifestyle. Consulting with a healthcare provider can help in making an informed decision about the best contraceptive option.