The pill (combined pill or birth control pill) is a tablet that contains a combination of two hormones, an oestrogen and a progestin. These hormones primarily prevent ovulation.
The pillThe mini pill (progestin-only pill) contains a single hormone, a progestin.
The mini pillThe progestin-only contraceptive injection (or 'depo injection') contains a synthetic version of the natural hormone progesterone.
InjectableEmergency contraception (morning after pill or post coital contraception) aims to prevent a pregnancy from developing either by preventing fertilisation of the egg by the sperm or by preventing implantation of a fertilised ovum into the lining of the womb.
Emergency contraception