Does Cerazette stop periods straight away?
Bleeding patterns can be unpredictable with progestogen-only pill use. Science isn't quite sure why this happens, although we think it's that the vessels in the womb lining become more fragile and the womb lining becomes thinner over time. After using the desogestrel progestogen-only pill for about 12 months, around half of women may have very infrequent or even no periods at all. For some women this is disconcerting, others love it! But it is a normal side effect so don't worry. If your bleeding pattern suddenly changes, consider doing a pregnancy test.