Back to resources

Periods & menstrual health · 5 min read

How to track your menstrual cycle

Tracking your cycle helps you understand your body, spot problems early, and plan or avoid pregnancy. Here's how to do it and what to look for.

Dr Susan WhitlockUpdated July 2026
Medically reviewed by Dr Susan Whitlock, AHPRA-registered GP — Last reviewed July 2026
How to track your menstrual cycle

Why track your cycle

Tracking your menstrual cycle helps you learn what's normal for you, which makes it much easier to notice when something changes. It's useful for understanding your fertile window (whether you're trying to conceive or avoid it), predicting your period, and giving your GP accurate information if you ever have concerns.

You don't need anything fancy — a notebook, calendar or a free app all work.

What to record

Note the first day of each period (this is day one of your cycle) and how many days it lasts. Track your flow (light, medium, heavy), any clots, and pain. Over a few months you'll see your typical cycle length — the number of days from the start of one period to the start of the next, usually 21 to 35 days.

You can also track other signs: mid-cycle discharge changes, ovulation pain, mood, and any spotting. If you're trying to conceive, ovulation predictor kits and cervical mucus changes add detail.

What the patterns tell you

A regular, predictable cycle is a good sign of healthy ovulation. Cycles that are consistently very short or long, highly irregular, or that suddenly change are worth mentioning to a GP, as they can point to conditions like PCOS, thyroid problems or perimenopause.

If your tracking shows something's off — or you just want help interpreting it — a GP can review your pattern and arrange any tests needed. A telehealth consult is an easy way to get your cycle looked at.

References & sources

This content is general information and not a substitute for individual medical advice. Please consult a GP for your personal situation.

Ready to speak with a GP?

Book a private telehealth consult with an AHPRA-registered Australian GP.

Related conditions we treat

Keep reading