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PROS

    Easy to use expand_less

    For most women, it is easy to start and stop the pill.

    Is 91% effective at preventing pregnancy with typical use.

    Periods can be more regular and lighter for some women.

    Upon discontinuation of use, fertility should return to normal.

    Does not contain oestrogen but does contain progesterone.

    By correctly taking your pill you don't need to worry about contraception in the moment.

    Can be used when breastfeeding.

    Self-administered.

CONS

    User dependentexpand_less

    It can be difficult to remember to take the pill. Missing or not taking your pill on time can make it less effective or fail. Vomiting and diarrhoea can also make the pill less effective.

    Periods may happen more often, less often, be lighter, more irregular or stop altogether. You may also get spotting in between periods.

    You need to take the pill every day.

    Some women prefer hormone free options.

    Does not protect against HIV infection (AIDS) and other sexually transmitted infections (STIs).

    It may cause weight gain.

    It may cause breast tenderness.

    Some women experience mood changes, including mood swings, depression, or depressed mood.

The pros and cons listed are not exhaustive. Talk to your doctor or nurse for more information.

 

SIDE EFFECTS

Progestogen-only pill side effects

    WILL THE PROGESTOGEN-ONLY PILL AFFECT MY PERIODS?expand_less

    Periods may happen more often, less often, be lighter, more irregular or stop altogether. You may also get spotting in between periods.

    The progestogen-only pill can cause weight gain in some women.

    Some women experience mood changes whilst taking the progestogen-only pill.

    The progestogen-only pill can cause acne in some women.

    • Breast tenderness and breast enlargement
    • An increased or decreased sex drive (libido)
    • Headache and migraine
    • Nausea or vomiting
    • Ovarian cysts
      - Can cause small fluid-filled cysts on your ovaries – these don’t usually cause any symptoms and tend to go away on their own.

PP-UN-WHC-GB-0299 July 2025