Controlling conception refers to strategies and methods aimed at preventing or delaying pregnancy. There are several synonyms for this phrase, including birth control, family planning, contraception, and fertility management. Birth control can involve the use of various methods, such as barrier methods, hormonal methods, or intrauterine devices. Family planning is a broader term that encompasses birth control as well as other strategies aimed at managing family size and timing, such as natural family planning and sterilization. Contraception is another synonym that specifically refers to methods used to prevent fertilization or implantation of an egg in the uterus. Fertility management encompasses techniques used to regulate ovulation or sperm production to achieve or avoid conception.