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