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Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent pregnancy. [ 1 ] [ 2 ] Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. [ 3 ]
Fertility in colloquial terms refers the ability to have offspring. In demographic contexts, fertility refers to the actual production of offspring, rather than the physical capability to reproduce, which is termed fecundity. [1] [2] [3] The fertility rate is the average number of children born during an individual's lifetime.
Prevalence of infertility varies depending on the definition, i.e. on the time span involved in the failure to conceive. Infertility rates have increased by 4% since the 1980s, mostly from problems with fecundity due to an increase in age. [89] Fertility problems affect one in seven couples in the UK.
In the 1965–2009 period, contraceptive usage has more than tripled (from 13% of married women in 1970 to 48% in 2009) and the fertility rate has more than halved (from 5.7 in 1966 to 2.6 in 2009), but the national fertility rate is still high enough to cause long-term population growth.
Contraception, also known as birth control, is a form of reproductive technology that enables people to prevent pregnancy. [9] There are many forms of contraception, but the term covers any method or device which is intended to prevent pregnancy in a sexually active woman.
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Long-acting reversible contraceptives (LARC) are methods of birth control that provide effective contraception for an extended period without requiring user action. They include hormonal and non-hormonal intrauterine devices (IUDs) and subdermal hormonal contraceptive implants. They are the most effective reversible methods of contraception ...
From these symptoms, a woman can learn to assess her fertility without use of a computerized device. Some systems use only cervical mucus to determine fertility. Two well-known mucus-only methods are the Billings ovulation method and the Creighton Model FertilityCare System. If two or more signs are tracked, the method is referred to as a ...