Menstrual Cycle
& Period Tracker
Log your periods, spot changes in your cycle and prepare a clear summary to discuss with your doctor. Estimates are informational, not a diagnosis.
How to enter your period history — start with the latest
Choose which period you are recording from the dropdown: Most recent, Second-last, Third-last or Fourth-last. Then enter its first and last day of bleeding. Start with the most recent period and work backwards. For each selected period, enter both the first day of bleeding and the last day of bleeding. You can begin with one period, but 3–4 accurately recorded periods help show patterns.
- 1. Most recent period — Enter the start and end dates of your last period — the one that happened most recently.
- 2. Second-last period — Enter the first and last day of the period immediately before your most recent one.
- 3. Third-last period — Enter the first and last day of the period before that. Then choose Fourth-last period if you remember it.
- 4. Return each month — When a new period occurs, record its actual start and end dates to build your history.
- 5. Review your patterns — See cycle lengths, variation, symptom notes and download a summary for your doctor.
| Which period? | First day | Last day |
|---|---|---|
| Most recent | 2 Nov 2026 | 6 Nov 2026 |
| Second-last | 1 Oct 2026 | 5 Oct 2026 |
| Third-last | 29 Aug 2026 | 3 Sep 2026 |
Cycle length is counted from the first day of one period to the first day of the next. Predictions are estimates, especially when cycles are irregular.
One-time mode does not save records. Download your summary before refreshing or closing. Monthly saved history will require a secure patient account, which is not yet connected.
