On this page 5 sections
Quick answer
- Progestogen only – suitable for many who can’t take oestrogen.
- Taken every day without breaks.
- Your late window is 3, 12 or 24 hours depending on type.
- Irregular bleeding is the most common side effect.
The progestogen-only pill (POP or mini pill) has just one hormone, progestogen. It’s a good option if you can’t take oestrogen – for example if you get migraines with aura, smoke and are over 35, or are breastfeeding. It’s over 99% effective with perfect use and 91% with typical use.
How you take it
One pill every day, with no break between packs. Timing matters, and the window depends on the type:
- Traditional POP: within 3 hours of your usual time
- Desogestrel (e.g. Cerazette, Cerelle): within 12 hours
- Drospirenone (e.g. Slynd): within 24 hours
Starting it
- Traditional or desogestrel started on days 1–5 of your period: protected straight away. Later: use condoms for 2 days.
- Drospirenone started on day 1: protected straight away. Later: use condoms for 7 days.
What to expect
Periods can become lighter, more frequent, irregular or stop altogether, and spotting is common. Some people report acne, mood swings, weight changes or libido changes, but the NHS says there isn’t enough evidence to say the pill causes them.
Sources
Written by the Splash teamSources checked
This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US). How we write and check articles.