The mini-pill is a contraceptive that contains only one hormone—progestogen—without any oestrogen, unlike combination birth control pills. It has a lower concentration of hormones compared to combination pills.
It is crucial to take the mini-pill within an hour of the same time each day. There is no pill-free week, so it is taken daily without a break. When used consistently, the mini-pill is just as effective as the combination birth control pill.
The mini-pill increases its reliability by thickening cervical mucus, which prevents sperm from reaching the egg.