Bleeding or Spotting on the Pill: Is It Normal?

Reviewed by Usama Ali, MPharm (GPhC: 2224726). Last reviewed: October 2026.

Bleeding when you are not expecting it can be worrying, especially if you have just started the pill. Most of the time it is a normal side effect, but sometimes it is worth getting checked.

This guide explains why bleeding and spotting happen on the combined pill and the mini pill, whether you are still protected, and when to see a doctor.

Is it normal to bleed on the pill?

Yes. Bleeding or spotting between periods is common on the pill, especially in the first 3 months, and is called unscheduled or breakthrough bleeding. On the combined pill it affects up to 1 in 5 people at first and usually settles (FSRH, 2015). On the mini pill it is more common and may not settle.

Light bleeding or brown discharge between periods is often called spotting. Heavier bleeding, more like a light period, is usually called breakthrough bleeding.

Why do you bleed on the combined pill?

On the combined pill, bleeding between periods is most likely in the first 3 months while your body adjusts, and it usually settles. Around 10 to 18% of people bleed in any one cycle, and pills with 20 micrograms of ethinylestradiol cause more bleeding than those with more (FSRH CHC guideline).

The bleed you have in the 7-day break is a withdrawal bleed, caused by the drop in hormones, not a true period. Bleeding at other times in the pack is unscheduled. Spotting is also more common if you take packs back to back to skip the break, which is outside the pill's licence although FSRH guidance supports it.

Why do you bleed on the mini pill?

Irregular bleeding is common on the mini pill. Up to half of people taking desogestrel notice some change: bleeding becomes more frequent in 20 to 30% and less frequent or stops in about 20%. It often becomes less frequent after a few months (Cerazette SPC), but on any mini pill it may not settle.

The table shows typical bleeding over 3 months for each type of mini pill, measured at about a year for desogestrel and traditional pills and at 6 to 9 months for Slynd (FSRH, 2026).

Slynd has 4 inactive tablets in each pack, so you may also bleed during those days. Read more in desogestrel and Slynd.

What else can cause bleeding on the pill?

Other causes of bleeding on the pill include missed or late pills, being sick or having severe diarrhoea, and medicines that speed up how your body clears the hormones, such as rifampicin, some epilepsy medicines and St John's wort. Chlamydia, pregnancy and changes to the cervix can also cause bleeding, so these are worth ruling out (FSRH, 2015).

• Missed or late pills. See what to do if you miss a pill.
• Vomiting or severe diarrhoea, which can stop the pill being absorbed. See vomiting and diarrhoea on the pill.
• Interacting medicines. Most antibiotics do not affect the pill; rifampicin and rifabutin do. See do antibiotics affect the pill?
• Infections. Up to 70% of people with chlamydia have no symptoms, and abnormal bleeding can be a sign of it (FSRH, 2015). Tests are free at sexual health clinics.
• Pregnancy, if pills have been missed.
• Changes to the cervix, such as cervical ectropion or polyps (NHS). Keep up to date with cervical screening.

Does bleeding mean the pill isn't working?

No. If you take your pill correctly, bleeding or spotting on its own does not mean you are less protected from pregnancy (FSRH, 2015). The Cerazette leaflet puts it plainly: irregular bleeding is not a sign that the pill is not working.

The exceptions are if you have missed pills, been sick or had severe diarrhoea, or are taking a medicine that interacts with the pill. Then follow the missed pill advice for your pill.

Can you take 2 desogestrel pills to stop bleeding?

No, do not take extra pills to stop bleeding. The desogestrel product information says to take one tablet a day whatever bleeding you have, and FSRH guidance found no reliable evidence that a double dose helps bleeding and no study evidence on its safety (FSRH, 2026). If bleeding bothers you, speak to a pharmacist, GP or sexual health clinic.

This is different from catching up after a missed pill, when taking two in one day is fine. See what to do if you miss a pill.

How can you manage bleeding on the pill?

Give it time: on the combined pill, FSRH advises carrying on for at least 3 months, as bleeding often settles. If it does not, a pharmacist, GP or sexual health clinic can check for other causes and talk through options, which may include a different pill or method (FSRH, 2019).

On the combined pill, a pill with a different progestogen or a little more oestrogen (up to 35 micrograms) may suit you better. No combined pill has been shown to control bleeding better than the others, so it can take some trial and error. On the mini pill, a different pill or another method suits some people. Read how to switch contraceptive pill.

When should you see a doctor about bleeding on the pill?

See a GP or sexual health clinic if you bleed after sex, if bleeding starts after months of a settled pattern or carries on after the first 3 months, or if it is heavy or comes with pain or unusual discharge. These can be signs of an infection or of changes to the cervix that need checking (NHS).

Get an urgent GP appointment or call NHS 111 if you have missed a period, have unusual bleeding and have pain anywhere in your tummy, as this could be an ectopic pregnancy. Call 999 if you have sudden, severe tummy pain and feel very dizzy or faint (NHS).

If you are 45 or over and bleeding carries on beyond the first 3 months, your doctor may suggest further tests.

What if you don't bleed in the pill-free break?

If you have taken your pills correctly, a missed withdrawal bleed is very unlikely to mean you are pregnant, and you do not need a monthly bleed to be healthy (FSRH CHC guideline). Start your next pack on time.

Do a pregnancy test if you missed pills or took a medicine that interacts with the pill, or if you miss two bleeds in a row. Take the test 3 weeks after the last time you had unprotected sex (NHS). For more on periods and the pill, read does the pill stop your period?

This information is for general guidance only and does not replace advice from a clinician, pharmacist, or doctor. A clinician will review your consultation before any medication is supplied.