The Progestogen-only Contraceptive Pill (POP)

The “traditional” progestogen-only pill (POP) prevents pregnancy by thickening the mucus in the cervix to stop sperm reaching an egg. The desogestrel progestogen-only pill can also stop ovulation. 

At a glance: facts about the progestogen-only pill

Progestogen-only pills contain the hormone progestogen, but don’t contain oestrogen. You need to take the progestogen-only pill reliably every day.