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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Partly. A doctor can assess the bleeding by video and suggest a change; bleeding after sex, or bleeding that persists or changes after 3 months, needs an examination and tests.
- How common: up to 1 in 5 people have irregular bleeding in the first 3 months of the combined pill, and bleeding changes are common with the implant, the injection and the hormonal coil.
- How long: with the combined pill it usually settles within 3 months; with the hormonal coil it can take 6 months or longer, and with the implant the early pattern often continues.
- Get checked: bleeding after sex, bleeding with pain, discharge or a high temperature, or a new pattern after months of settled bleeding needs tests, including for pregnancy and infections.
- Emergency: call 112 for very heavy bleeding with dizziness or fainting, or sudden, severe tummy pain, especially if you could be pregnant.
Do not book a video appointment if you are bleeding very heavily and feel dizzy or faint, or have sudden, severe pain low in the tummy, especially with a positive pregnancy test: call 112 or go to an emergency department. Bleeding with a high temperature, unusual discharge or pain during sex needs an in-person check promptly.
Can an online doctor help with breakthrough bleeding?
Partly. Bleeding between periods in the first months of a hormonal method is common, and a doctor can assess it by video: the method, how you take it, the pattern and your risks. The doctor tells you whether it is likely to settle and may suggest or prescribe a change. Bleeding after sex, bleeding that persists or changes after 3 months, or bleeding with pain or discharge needs an examination, tests for infections, a pregnancy test or cervical screening, and these happen in person.
How an online consultation helps with breakthrough bleeding
- Expected, or something else?: Bleeding in the first 3 months is common; the doctor looks for the patterns that need checking.
- The tests that matter: A pregnancy test, a chlamydia test or cervical screening when your history points to them.
- Help that suits your method: What works differs for the pill, the implant, the injection and the coil.
- A plan if it does not settle: When a different method makes sense, and which one is likely to give you the bleeding pattern you want.
What the doctor checks in an online consultation about bleeding between periods
The doctor asks about the warning signs first, then about your method and the bleeding. The doctor asks about:
- Warning signs: very heavy bleeding, dizziness, tummy pain, a high temperature, unusual discharge, pain during sex, or bleeding after sex.
- Your method: which one, when you started it, and any recent switch.
- How you take it: missed or late pills, vomiting or diarrhoea, other medicines, and running packs back to back.
- The pattern: when the bleeding happens, how much, for how long, and whether it has changed.
- Pregnancy and infection risk: unprotected sex, a new partner or more than one partner in the last year, and your age.
- Checks you have had: whether your cervical screening is up to date, and any recent tests for infections.
Before the call, note the days you bled over the last 2 or 3 months, or use a period tracking app. A diary makes the pattern, and the answer, much clearer.
What is breakthrough bleeding?
Breakthrough bleeding is bleeding or spotting between periods that you do not expect, most often caused by hormonal contraception. It is usually light and dark brown or light red, but it can be pink, dark red or heavier. It is usually a nuisance rather than a sign of a problem.
What is the difference between breakthrough bleeding and a period?
A period usually starts light, gets heavier and then tails off over a few days. Breakthrough bleeding is more random: often light, it can last from a few hours to a few days and does not follow that pattern. It does not count as a period, so it can make tracking your cycle harder.
Swipe sideways to compare →
| Breakthrough bleeding | A period or withdrawal bleed | |
|---|---|---|
| When | At unexpected times between periods | At the expected time, or in the break between packs |
| Amount | Usually light spotting, sometimes heavier | Builds up, then tails off |
| Colour | Often dark brown or light red | Bright or dark red |
| How long | A few hours to a few days | Usually several days |
How common is breakthrough bleeding, and how long does it last?
It depends on the method. Bleeding changes are common with every hormonal method, especially in the first 3 months, and with some methods the pattern after 3 months is the one you are likely to keep. These figures come from UK guidance:
Swipe sideways to compare →
| Method | What is common | Does it settle? | Read more |
|---|---|---|---|
| Combined pill | Up to 1 in 5 users have irregular bleeding in the first 3 months | Usually; the vaginal ring may give better cycle control | Combined pill |
| Traditional progestogen-only pill | About 1 in 3 have a change in bleeding in the first 3 months | It may not settle with time | Progestogen-only pill |
| Desogestrel progestogen-only pill | After a year, about half have no or infrequent bleeding; 2 in 10 have bleeding that lasts more than 14 days | Patterns vary | Progestogen-only pill |
| Implant | At 12 months, 2 in 10 have no bleeding, 3 in 10 infrequent bleeding and 2 in 10 prolonged bleeding | The pattern in the first 3 months often continues | Contraceptive implant |
| Injection | About 1 in 10 have no bleeding in the first 3 months, rising to half or more at 12 months | No bleeding becomes more common over time | Contraceptive injection |
| Hormonal coil | Frequent bleeding or spotting is common in the first few months | It can take 6 months or longer; blood loss then falls sharply | Hormonal coil |
How long does a breakthrough bleed last?
Each episode usually lasts from a few hours to a few days. After starting or changing a method, the pattern often takes up to 3 months to improve, and with the hormonal coil it can take 6 months or longer. Bleeding for 2 weeks or more, or that is still happening after 3 months, is worth a review.
Why am I bleeding on the pill when I shouldn’t be?
Most often because your body is still adjusting to a new method. Other common reasons are to do with how the method is used, and a few need checking:
- A new method or a recent switch: bleeding is most common in the first 3 months.
- Missed, late or interrupted doses: missed pills, and vomiting or severe diarrhoea, which stop a pill being absorbed.
- Running packs back to back: skipping the break to avoid a bleed makes breakthrough bleeding more likely.
- Low-dose pills and smoking: both make bleeding between periods more likely.
- Emergency contraception: the morning-after pill can cause spotting and change the timing of your next period.
- Infections: chlamydia and gonorrhoea can cause bleeding between periods or after sex, often with no other symptoms.
- Pregnancy: bleeding can be an early sign, including of a pregnancy outside the womb.
- Changes in the womb or cervix: polyps, fibroids or endometriosis, and rarely cancer of the womb or cervix.
Why am I bleeding on the mini pill?
Changes in bleeding are common with the progestogen-only pill. With the traditional type, about 1 in 3 people have a change in the first 3 months, and it may not settle; with the desogestrel type, about half have no or infrequent bleeding after a year, while some bleed more often. Late pills make bleeding more likely, and the missed pill page explains when a late pill also means you are not protected.
When should you worry about bleeding between periods?
Light bleeding in the first 3 months of a new hormonal method is expected. These patterns need a check, and some of them an examination:
Swipe sideways to compare →
| What you notice | What it can mean | What to do |
|---|---|---|
| Light bleeding in the first 3 months of a new method | Your body adjusting | Keep a diary; carry on with the method |
| Bleeding still happening after 3 months | The method may not suit you, or another cause | A review, and an examination if it persists |
| New bleeding after months of a settled pattern | Pregnancy, an infection or a change in the cervix | A pregnancy test, infection tests and an examination |
| Bleeding after sex | An infection, or a change in the cervix | An examination and tests |
| Bleeding with pain, pain during sex, discharge or a high temperature | A pelvic infection | An in-person check promptly |
| Soaking through several pads or tampons a day | Heavy bleeding | Urgent medical advice |
| Persistent bleeding at 45 or over | Changes in the womb lining | Tests in person, which may include a sample of the womb lining |
| Bleeding with a positive pregnancy test, or one-sided pain | A miscarriage or an ectopic pregnancy | Urgent assessment; call 112 for severe pain |
Should I be worried if I am bleeding for 2 weeks on the pill?
Not usually, if you started the pill in the last 3 months and the bleeding is light. Do a pregnancy test if you have missed pills or had unprotected sex, and see a doctor if it continues after 3 months, is heavy, follows sex, or comes with pain or discharge.
Which treatment might the doctor recommend for breakthrough bleeding?
Treatment depends on your method, how long you have used it and what the checks show. This is the framework the doctors use, in line with UK sexual health guidance:
Swipe sideways to compare →
| What you have | Likely first step | Suitable for online care? | When in-person care is needed |
|---|---|---|---|
| Combined pill, first 3 months | Carry on with the same pill, taken at the same time every day | Yes | Not usually needed |
| Combined pill, still bleeding after 3 months | Tests if needed, then a different pill or the vaginal ring | Yes | An examination if the bleeding persists |
| Progestogen-only pill | A different progestogen-only pill, or another method | Yes | If bleeding follows sex or keeps changing |
| Implant or injection | A short course of the combined pill, if it is safe for you, or an anti-inflammatory medicine | Yes | If it persists or follows sex |
| Hormonal coil | Time to settle, or a 3-month course of the combined pill if it is safe for you | Yes | If bleeding follows sex, or comes with pain or discharge |
| Risk of an infection, or not up to date with cervical screening | A chlamydia test, and screening | Partly | For swabs and screening |
| Bleeding after sex, or with pain or discharge | An examination and tests | Partly | Promptly, in person |
| Very heavy bleeding with dizziness, or severe pain with a positive pregnancy test | Emergency care | No | Call 112 now |
Not sure whether your bleeding is expected? A doctor can tell you in one consultation.
See available times →Treatment options for breakthrough bleeding
What you can do yourself
- Keep a bleeding diary for 2 or 3 months: it shows whether things are settling.
- Take the pill at the same time every day, and check the missed pill rules if you were late.
- Do not stop your contraception without another method in place: stopping suddenly risks pregnancy.
- Do a pregnancy test if you have missed pills or had unprotected sex.
- Get tested for infections if you have a new partner or more than one partner, and use condoms.
- Stop smoking: it makes bleeding between periods more likely.
Prescription treatment
A prescription is never issued without a consultation. Depending on your method, the doctor may suggest a different pill or the vaginal ring, a short course of the combined pill alongside an implant, injection or hormonal coil when it is safe for you, or an anti-inflammatory medicine such as mefenamic acid to shorten an episode. If tests or an examination are needed first, the doctor tells you which and where. If the doctor prescribes, use the prescription at a pharmacy near you.
What does not help
Changing the combined pill in the first 3 months, before bleeding has had a chance to settle. Taking 2 progestogen-only pills a day, which has no evidence behind it. Assuming bleeding after sex is caused by your contraception.
Special situations
Aged 45 or over, or in perimenopause
Persistent bleeding, or a change in your pattern, at 45 or over may need tests of the womb lining in person. The contraception in perimenopause page covers which methods suit this stage.
Delaying periods with the pill
Running packs back to back makes breakthrough bleeding more likely. If you want to skip a bleed for a holiday or an event, the period delay page explains your options.
When the combined pill is not an option
The combined pill is often used to settle bleeding with other methods, but it is not suitable for everyone, for example with migraine with aura. The doctor checks this first.
While travelling in Europe
Changing time zones makes late pills more likely, and holiday stomach bugs can stop a pill being absorbed: both can cause bleeding and reduce protection. Keep taking your pill at roughly the same interval, and check the missed pill rules after vomiting or diarrhoea.
Children
Mobi Doctor consultations are for adults aged 18 and over. A child who is unwell needs a paediatrician or a local doctor in person, and emergency signs in a child mean 112.
When breakthrough bleeding is treated online, and when you need in-person care
Treated online: bleeding in the first months of a hormonal method, deciding whether tests are needed, changing to a different pill or the ring, short courses of treatment for bleeding with an implant, injection or coil, and choosing a method with a better bleeding pattern for you.
In-person care: bleeding after sex, persistent or new bleeding that needs an examination, swabs, cervical screening, tests of the womb lining, and heavy bleeding or pain, especially with a positive pregnancy test.
When to get in-person care
Call 112 or go to an emergency department now for:
- very heavy bleeding with feeling dizzy, faint or very unwell
- sudden, sharp and intense pain in the tummy, with feeling very dizzy or fainting
- a positive pregnancy test with severe pain low in the tummy, especially on one side
Get medical advice the same day for:
- bleeding that soaks through several pads or tampons a day
- bleeding with a high temperature, tummy pain or unusual discharge
- bleeding with a positive pregnancy test
- new pain low in the tummy on one side, or pain in the tip of your shoulder, if you could be pregnant
Bleeding after sex, or bleeding that has not settled after 3 months, needs an examination: book it promptly rather than waiting for it to stop.
How Mobi Doctor works
- Book a time that suits you: daily 7am–11pm CEST. You can see a doctor over video, usually within 15 minutes. No subscription, and the exact price is shown before you pay.
- Speak to a licensed doctor about the bleeding: say which method you use and since when, how you take it, and when you have bled over the last few months.
- Leave with a plan: what to do, what to take and for how long, and which signs mean you should be seen in person. If the doctor prescribes, use the prescription at a pharmacy near you.
No sign-up needed
Bleeding between periods can have more than one cause. Tick every symptom you have to see each condition page that mentions it. It finds the right page, not a diagnosis: a doctor gives you that on a video call.
Tap the body — an area or a point — to browse symptoms anywhere
Similar symptoms, different condition? Chlamydia can start the same way. Compare them, or look up any other symptom in the full symptom checker.
Frequently asked questions about breakthrough bleeding
What is breakthrough bleeding?
Bleeding or spotting between periods that you do not expect, most often caused by hormonal contraception. It is usually light and dark brown or light red, and it is usually a nuisance rather than a sign of a problem.
What does breakthrough bleeding look like?
Breakthrough bleeding is usually light and dark brown or light red, though it can be pink, dark red or occasionally heavier, and it comes at a time you were not expecting a bleed. Unlike a period, which starts light, gets heavier and tails off over a few days, it often appears as spotting on and off, sometimes for a few hours and sometimes for days.
Why am I bleeding on the pill when I shouldn't be?
Breakthrough bleeding is most often your body adjusting: up to 1 in 5 people bleed in the first 3 months of the combined pill. Missed or late pills, vomiting, running packs together, smoking, infections such as chlamydia and pregnancy can also cause it.
How long does breakthrough bleeding last?
Each episode of breakthrough bleeding usually lasts a few hours to a few days. With a new method, the pattern often improves within 3 months, and with the hormonal coil it can take 6 months or longer.
What is the difference between breakthrough bleeding and a period?
A period builds up and then tails off over several days at the expected time. Breakthrough bleeding comes at unexpected times, is usually lighter and more random, and is often brown or light red.
How do I stop breakthrough bleeding on the pill?
There is no instant fix. Take the pill at the same time every day and give a new pill 3 months. If bleeding continues after that, a doctor can check for other causes and suggest a different pill or the vaginal ring.
What can I do at home about breakthrough bleeding?
Keep a bleeding diary for 2 or 3 months, because it shows whether breakthrough bleeding is settling; take your pill at the same time every day and check the missed pill rules if you were late; do a pregnancy test if you have missed pills or had unprotected sex; get tested for infections if you have a new partner; and stop smoking, which makes bleeding between periods more likely. Do not stop your contraception without another method in place.
How can I prevent breakthrough bleeding?
Breakthrough bleeding cannot always be prevented, because it is partly how your body adjusts to a new hormonal method, but taking the pill at the same time every day, not missing pills, not smoking, and giving a new method 3 months to settle before changing it all make it less likely. If it continues after 3 months, a different pill, the vaginal ring or another method often solves it.
Should I be worried if I am bleeding for 2 weeks on the pill?
Not usually: light breakthrough bleeding in the first 3 months of the pill is expected. Do a pregnancy test if you missed pills or had unprotected sex, and see a doctor if it continues after 3 months, is heavy, follows sex, or comes with pain or discharge.
Is bleeding between periods a sign of pregnancy?
It can be. Light bleeding can happen in early pregnancy, and bleeding with pain on one side can be an ectopic pregnancy. Do a pregnancy test if there is any chance, especially after missed pills or unprotected sex.
Why am I bleeding on the mini pill?
Bleeding changes are common with the progestogen-only pill. About 1 in 3 people on the traditional type have a change in the first 3 months. Late pills make it more likely, and a different progestogen-only pill sometimes helps.
When should I see a doctor about spotting between periods?
If it continues after 3 months of a new method, starts after months of a settled pattern, follows sex, is heavy, or comes with pain, discharge or a high temperature. Bleeding after sex always needs an examination.
Can an infection cause bleeding between periods?
Yes. Chlamydia and gonorrhoea can cause bleeding between periods or after sex, and most people with chlamydia have no other symptoms. A test is worth doing if you have a new partner or more than one partner.
Can an online doctor help with breakthrough bleeding?
Partly. A doctor can assess the bleeding by video, tell you whether it is likely to settle, and suggest or prescribe a change. Bleeding after sex, or bleeding that persists or changes, needs an examination and tests in person.
- Problematic bleeding with hormonal contraception, Faculty of Sexual and Reproductive Healthcare (now the College of Sexual and Reproductive Healthcare), Clinical Effectiveness Unit, July 2015.
- Breakthrough bleeding, Cleveland Clinic (US), updated June 2026.
- What you should know about breakthrough bleeding with birth control, ACOG, American College of Obstetricians and Gynecologists, January 2021.
- Chlamydia, NHS, National Health Service (UK), reviewed 24 October 2024.
- FSRH Clinical Guideline: Intrauterine Contraception, Faculty of Sexual and Reproductive Healthcare (now the College of Sexual and Reproductive Healthcare), March 2023, amended July 2023.
- FSRH Clinical Guideline: Emergency Contraception, Faculty of Sexual and Reproductive Healthcare (now the College of Sexual and Reproductive Healthcare), March 2017, amended July 2023.
- Ectopic pregnancy, NHS, National Health Service (UK), reviewed 23 August 2022.
This page is for information only and is not a substitute for a medical consultation. Guideline links are provided for transparency; treatment decisions are made with your doctor.
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