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How long does the mini pill take to work?

The progestogen-only pill (POP), often referred to as the mini pill, is a type of oral contraceptive pill. It is most effective when taken at around the same time every day. Examples of the POP are Cerazette and Cerelle, Feanolla, Zelleta.

The mini pill works to reduce the chance of conception in different ways. One of the main ways it does this is by increasing the amount and thickness of cervical mucus, making it difficult for sperm to reach and fertilise an egg. This effect is achieved very soon after starting the POP.

When the POP is first started, users may need to give the pill enough time to start working and use additional precautions to prevent pregnancy, such as condoms or avoiding vaginal sexual intercourse.

If the POP is started on days 1-5 of the menstrual cycle, no additional precautions are needed. If the POP is started outside of this time, additional precautions should be used for the first 48 hours.

If switching from another form of contraception, additional precautions may apply, depending on whether there has been any risk of unprotected sexual intercourse.

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