Pre-Storm phase 6 min read

Spotting Before Your Period: Common Causes

A little spotting before your period can be startling, but it's usually a harmless early start to your cycle. Here is what causes it, how to tell it from your period, and when to check.

By the Otty Team
June 22, 2026 · Updated July 15, 2026 · 6 min read
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Lotty the otter watering a plant at dusk, illustration for a guide to spotting before your period.
Illustration: Lotty in her Pre-Storm phase.

Spotting before your period is usually normal, often just a little early, slow-moving blood as your cycle winds toward your period. It tends to be light and pink or brown rather than a full red flow, and shows up in the day or two before bleeding really starts. This guide covers what causes spotting before your period, what is normal, and the signs worth a quick check.

What is spotting before your period?

Spotting before your period is light bleeding in the days just before your period proper. It is much lighter than your flow, often only noticeable when you wipe, and tends to be pink or brown rather than bright red. For most people it is simply the slow start of their period and nothing to worry about.

It is one of the lighter shades in the normal range of period blood, just arriving early.

What causes spotting before your period?

Most spotting before your period comes down to the natural hormone dip at the end of your cycle, which can release a little blood early. Other common, usually harmless causes include birth control, stress, and the slow clearing of older blood. Occasionally, spotting can signal early pregnancy.

The usual causes:

  • The normal hormone drop right before your period, releasing a little blood early
  • Older blood clearing slowly, which looks brown
  • Hormonal birth control, especially in the first few months
  • Stress or a recent change in routine
  • Implantation, if you are newly pregnant, so test if your period is then late

Spotting before your period is usually just an early, quiet start. Light, brief, and gone once your flow arrives.

Spotting vs your period: how to tell

The difference is mostly amount and timing. Spotting is light enough that it would not fill a pad or tampon, shows up before your period is due, and often stops or turns into your full flow within a day or two. Your period is heavier, redder, and lasts several days.

If light spotting is followed by your normal period, it was just an early start. If it is followed by a missed period, take a pregnancy test, and our guide on why your period is late covers the other reasons.

When should you see a doctor about spotting?

Occasional light spotting before your period is normal. It is worth a check when it becomes a frequent pattern or comes with other symptoms, since the NHS suggests seeing a GP for bleeding between periods that is new for you.

✓ Do
  • Light pink or brown spotting in the day or two before your period
  • Occasional spotting that turns into your normal flow
  • A little spotting in the first months on new birth control
✗ Don't
  • Spotting between periods that happens often or every cycle
  • Spotting heavy enough to need a pad or tampon
  • Spotting with pelvic pain, fever, or an unusual smell
  • Bleeding or spotting after sex, more than once
  • Any spotting after menopause

None of these are automatically serious, but they are easy to get checked. Trust your baseline: a new spotting pattern is always worth a conversation.

Spotting before your period FAQ

The takeaway: spotting before your period is usually a light, harmless early start to your cycle, often just slow or older blood. Watch for frequent, heavy, or painful spotting, and check in with a doctor if the pattern is new for you.

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