Physical barriers for contraception include methods such as condoms, diaphragms, cervical caps, and contraceptive sponges. These barriers physically block sperm from reaching the egg, preventing fertilization.
Hormonal methods of contraception involve the use of hormones to prevent pregnancy. These methods include birth control pills, patches, injections, hormonal intrauterine devices (IUDs), and hormonal implants. These hormones work by suppressing ovulation, thickening cervical mucus to prevent sperm from reaching the egg, and thinning the lining of the uterus to make it less receptive to implantation.