Family planning is the practice of controlling the number of children a woman has and the spacing of the births. One of the most effective ways to avoid pregnancy is to use contraception. Contraception is any method or device used to prevent pregnancy.
There are many different types of contraception, including barrier methods, hormonal methods, and emergency contraception. Barrier methods, such as condoms and diaphragms, physically block sperm from reaching the egg. Hormonal methods, such as birth control pills and implants, work by preventing ovulation, the release of an egg from the ovary. Emergency contraception, such as the morning-after pill, can be used to prevent pregnancy after unprotected sex.