---
title: "Period delay: symptoms, causes & treatment | Sanara Health"
description: "Prescription tablets can safely postpone a period for holidays, exams or events — if started at the right time in your cycle."
url: "https://www.sanarahealth.co.uk/conditions/period-delay/"
source: "Sanara Health"
licence: "Quote with attribution and a link to the url above."
---
# Period delay: symptoms, causes & treatment

Prescription tablets can safely postpone a period for holidays, exams or events — if started at the right time in your cycle.

Editorial information by **Kaiser Khan**. Not clinically reviewed.

## Symptoms

- Not a disease — a planned delay request
- Timing depends on cycle day when starting
- Breakthrough bleeding possible if started late

## Why it happens

Natural progesterone withdrawal triggers a period. Delay tablets mimic pregnancy hormones to postpone shedding of the womb lining.

## Treatment

Prescription progesterone tablets taken 3 days before your period is due can delay bleeding for up to 17 days.

## Self-care that helps

Know your usual cycle length; start on time; expect a withdrawal bleed when you stop; not suitable for everyone.

## When to get help

Missed periods when not delaying, pregnancy possibility, or heavy bleeding after stopping — seek advice.

[See our period delay support →](https://www.sanarahealth.co.uk/guides/contraception-pill-online-uk/)

Go deeper

## Related guides

[Period delay tablets UK: how to postpone your period safely — UK period delay treatment explained — when to start tablets, how long you can delay, and who should not use them.](https://www.sanarahealth.co.uk/guides/period-delay-tablets-uk/)

Available without prescription

## Products that can help

[Everyday health — Vitamin D3: 1000 IU explained](https://www.sanarahealth.co.uk/supplements/vitamin-d3-1000iu/)

[Everyday health — Omega-3 fish oil](https://www.sanarahealth.co.uk/supplements/omega-3-fish-oil/)

[Everyday health — Daily multivitamins](https://www.sanarahealth.co.uk/supplements/daily-multivitamin/)