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Irregular cycles

Cycles all over the place.

PCOS-suspected, thyroid, post-pill, stress , we track ranges, surface patterns, and flag red flags.

What we track for you

  • Every bleed, length and date
  • Acne, hair growth, weight
  • Mood and energy crashes
  • Stress and sleep

Red flags we surface

  • · No period for 3+ months
  • · Cycles shorter than 21 or longer than 35 days
  • · Suspected PMOS (formerly PCOS) symptoms

When any of these show up across your logs, you get a prompt and the GPS opens with the right questions ready.

What's happening

Cycles that won't behave aren't random — there's usually a story. The job is finding the chapter.

Irregular cycles can come from PCOS/PMOS, thyroid issues, stopping the pill, stress, weight changes, perimenopause, or just genetics. Knowing the why changes the fix.

Tracking even three messy cycles gives a GP something to work with. Date, length, flow, mood, energy and any skin/hair changes are all useful clues.

Common patterns

  1. PCOS/PMOS pattern

    Long cycles (35+ days), acne, hair growth, weight gain, anovulation.

  2. Hypothalamic pattern

    Cycles slow or stop after a period of stress, low energy intake or heavy training.

  3. Post-pill pattern

    Cycles take 3–6 months to return after stopping hormonal contraception.

  4. Perimenopausal pattern

    From late 30s onwards: cycles shorten, then lengthen, then disappear.

Symptoms you might notice

Long cycles

Bleeding less often than every 35 days.

Short cycles

Bleeding more often than every 21 days.

Acne flares

Especially jawline and chin — often hormonal.

New hair growth

Face, chest or back — worth flagging.

Self-care that actually helps

Eat enough

Undereating is one of the most common causes of stopped cycles.

Manage stress

Sleep and stress directly affect ovulation.

Strength + walk

Gentle movement helps insulin sensitivity if PCOS is on the table.

Push for tests

Bloods (TSH, prolactin, FSH/LH, testosterone) + pelvic ultrasound are reasonable to ask for.

When to see a clinician

Same week

  • · No period for 3+ months
  • · Sudden cessation with weight loss
  • · Severe pelvic pain

Worth a chat

  • · Acne not responding to skincare
  • · New facial hair
  • · Cycles outside 21–35 days for 3+ months

Questions to ask your doctor

  • Can we test thyroid, prolactin, FSH/LH and testosterone?
  • Is an ultrasound appropriate?
  • Could this be PCOS/PMOS, and what does that mean for me?

What you walk into appointments with

A 1-page summary built from your logs, ready to hand over. See what it looks like:

See a sample summary

Start here

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