A woman can get pregnant if a man’s sperm reaches one of her eggs (ova). Contraception tries to stop this from happening by keeping the egg and
sperm apart or by stopping egg production.
The progestogen-only pill (POP) is a method of contraception. It contains the hormone progestogen but doesn’t contain estrogen. You need to take the progestogen-only pill at or around the same time every day.
The progestogen-only pill thickens the mucus in the cervix, which stops sperm from reaching an egg. It can also stop ovulation, depending on the type of progestogen-only pill you take. Newer progestogen-only pills contain desogestrel.
There are two different types of the progestogen-only pill: