The Female Contraceptive Pill - #WorldContraceptive Day 26th September 2019. The pill, as it is known in its abbreviated term, was introduced in the UK on the NHS in 1961, originally for married women until 1967 when it was made available for all women who did not wish to conceive, and is now taken by over 3 million women in Britain between the ages of 16 and 49. The pill is available in 32 different varieties and worldwide is taken by around 100 million women. Correctly administered, it is reported to be 99% effective. Any initial experienced side-effects can be swerved by alternating the variety of contraception you ingest.