Birth control pills are one of the most effective ways to prevent pregnancy. They also come in various forms, from oral contraceptives to vaginal rings. Which one should you choose? There are two main types of birth control pills: hormonal and nonhormonal. Hormonal pills contain synthetic hormones that regulate ovulation and menstruation. Nonhormonal pills don’t contain hormones and instead rely on natural methods such as spermicide or cervical mucus.Birth control pills are highly effective at preventing pregnancy, but they aren’t 100% reliable. If you want to get pregnant, you might consider using another method of contraception. buy birth control pills