How to Delay Your Period for Travel: Options and Safety

In short: If your period is likely to clash with a holiday, flight or special event, it can often be postponed for a short time. The two usual approaches are a prescription-only progestogen tablet (most commonly norethisterone), started a few days before your period is due, or, if you already take a combined contraceptive pill, running packs together without the usual break. A prescriber needs to check your medical history first, because these options are not suitable for everyone.

This guide, written by a Ready Health prescribing pharmacist, explains how period delay works, who it may and may not suit, and what to plan before you travel.

Why might you want to delay a period when travelling?

Periods are normal, but some trips make them harder to manage. People commonly ask about period delay for:

• long-haul flights and long overland journeys
• hiking, diving, camping or other activity holidays with limited facilities
• weddings, honeymoons and other once-in-a-lifetime events
• religious pilgrimages such as Hajj or Umrah

Delaying a period is meant for occasional, short-term use. If you want to avoid periods regularly, or your periods are heavy, painful or irregular, it is better to discuss longer-term options with a clinician.

How does norethisterone delay a period?

Norethisterone is a man-made version of progesterone. Taking it keeps the womb lining stable so that it is not shed while you are on the tablets. When you stop, hormone levels fall and a period usually follows within a few days.

It is a prescription-only medicine. When it is prescribed for period delay, the usual pattern is:

• one 5 mg tablet three times a day
• starting about three days before the date your period is expected
• continuing until you are happy for your period to arrive, for the limited period your prescriber advises
• a withdrawal bleed usually starting two to three days after the last tablet

It works best if you know roughly when your period is due, so tracking your cycle for a few months beforehand helps. Always follow the directions on your prescription label and patient information leaflet.

Does norethisterone work as contraception?

No. Norethisterone taken for period delay does not stop you getting pregnant. Use a reliable method of contraception if you are sexually active, and speak to a clinician before starting if there is any chance you could already be pregnant.

Who should not take norethisterone?

Part of norethisterone is converted in the body into a small amount of oestrogen, which is one reason it is not suitable for everyone, especially before a long flight when the risk of blood clots is already slightly higher. A prescriber will ask about, and may advise against it if you have:

• a current or previous blood clot (DVT or pulmonary embolism), a known clotting disorder, or a close family history of clots
• a history of stroke, heart attack or other arterial disease
• severe or active liver disease, or a history of liver tumours
• breast cancer or another hormone-sensitive cancer, now or in the past
• unexplained vaginal bleeding that has not been investigated
• porphyria
• pregnancy or possible pregnancy

Extra care is also needed if you have migraine, high blood pressure, are significantly overweight, smoke, have reduced mobility, or take other medicines that interact with hormones (for example some epilepsy and HIV medicines). Tell your prescriber about everything you take, including herbal products such as St John's wort.

What side effects can norethisterone cause?

Most people take a short course without problems. Possible side effects include nausea, bloating, breast tenderness, headache, mood changes and some spotting. Get urgent medical help if you develop a painful, swollen leg, sudden breathlessness or chest pain, or sudden severe headache, weakness or problems with speech or vision.

Can I delay my period with the combined pill?

If you already take a combined oral contraceptive pill, you may be able to skip a withdrawal bleed by going straight from one pack to the next without the usual break. Key points:

• This only applies to combined pills. It does not apply to progestogen-only pills (the "mini pill").
• With monophasic pills (the same dose in every active tablet) this is a widely used and recognised approach.
• With phasic pills (doses change through the pack) and packs that contain inactive tablets, the method is different, so check with a pharmacist or prescriber first.
• Breakthrough bleeding or spotting is common, particularly in the first few months.

If the combined pill is not suitable for you, it should not be started just to delay a period.

Norethisterone or the combined pill: how do they compare?

If neither option is suitable, a prescriber may discuss alternatives, such as a different progestogen tablet, or simply plan ahead with period products and pain relief.

Practical tips for travelling with period-delay tablets

• Arrange a consultation two to three weeks before you travel so there is time to check suitability.
• Pack tablets in your hand luggage in their original labelled packaging.
• Set phone reminders and keep to regular dosing times, adjusting sensibly across time zones.
• Pack period products anyway, in case of breakthrough bleeding or an early period.
• On long flights, keep mobile, walk around when you can and stay well hydrated.

Frequently asked questions

How far in advance should I start norethisterone?

It is usually started around three days before your period is expected. Starting once bleeding has already begun is unlikely to stop it.

When will my period come after I stop?

Usually within two to three days of the last tablet. If it does not arrive, take a pregnancy test and speak to a clinician.

Can I use norethisterone every month?

It is intended for occasional, short-term use. If you regularly want to avoid periods, ask about longer-term contraceptive or gynaecological options.

Can I delay my period if I am on the mini pill?

Progestogen-only pills are taken every day without a break, so there is no planned bleed to skip. Bleeding patterns vary on the mini pill; speak to a clinician if this is a problem.

Key takeaways

• A period can often be postponed for a short time for travel or an event.
• Norethisterone is prescription-only, is usually started three days before your period is due, and is not a contraceptive.
• It is not suitable for people with a history of blood clots, certain cancers or liver disease, among others.
• If you take a combined pill, running packs together may be an option; check first if your pill is phasic.
• A prescriber decides which option, if any, is suitable for you.

Sources and further reading

• NHS: Periods
• BNF: Norethisterone
• NHS: Combined pill
• TravelHealthPro (NaTHNaC)

Last reviewed: October 2026 by Shamir Patel, Independent Prescribing Pharmacist, Ready Health. This article is general information and does not replace advice from your own clinician.

Travelling soon from Wigan, Standish, Chorley, Bolton or Horwich? A private GP or pharmacist consultation at Ready Health in Standish can talk through period delay and other travel health questions, and the clinician will advise whether any treatment is suitable for you. Book an appointment online or call 01257 676001.