The various types of contraceptive pills include combined oral contraceptives (COCs), which contain a combination of estrogen and progestin hormones, and progestin-only pills (POPs), which contain only progestin hormones. COCs work by preventing ovulation and thickening cervical mucus, while POPs primarily work by thickening cervical mucus and, to a lesser extent, inhibiting ovulation. Other types of hormonal contraceptives, such as the contraceptive patch and the vaginal ring, are also available and work similarly to COCs. The choice of contraceptive method depends on the individual's medical history and preferences, and should be discussed with a healthcare provider.