People can use family planning to achieve their desired number of children, if any, as well as the spacing of their pregnancies. It is accomplished through the use of contraceptive techniques and infertility treatment. Contraceptive knowledge and services are essential for everyone's health and human rights. Unintended pregnancy prevention helps to reduce maternal illness and the number of pregnancy-related fatalities. Family planning has substantial health benefits, including delaying pregnancies in young girls who are at higher risk of health problems from early childbearing, and preventing pregnancies in older women who are also at higher risk. Contraception minimises the need for unsafe abortions and HIV transmission from mothers to neonates by lowering the rate of unwanted pregnancies. This can also help girls' education and give women additional possibilities to engage fully in society, including paid work. According to estimates from 2017, 214 million women of reproductive age in developing countries have unmet contraceptive needs.