Two of the most common forms of contraception are the combined pill (known simply as ‘the pill’), and the progesterone only pill (known as the ‘mini pill’). The pill contains both oestrogen and progestin, a synthetic version of progesterone, to prevent ovulation, while the mini pill only contains progestin. These hormones suppress a part of the brain known as the pituitary gland, which stops sex hormones being released, in turn preventing ovulation.
Given the stigma surrounding asexuality, it is difficult to gauge an accurate picture of how many people in the UK identify as asexual. The most commonly cited study on the matter is one done in 2004 by Anthony Bogaert on data from the 90s. Of 18,000 respondents, just over 1% agreed with the statement “I have never felt sexually attracted to anyone at all.”