How to enable cycle tracking
You can set up cycle tracking when guided chat asks for it, or at any time from the Cycle section in the Body lens or dashboard widget. The setup editor includes:- Cycle status — Active (regular), Perimenopause / irregular, Postmenopause, Pregnant, Breastfeeding, or Absent (other reason).
- Contraceptive — a grouped dropdown covering hormonal methods (OCP, Mirena, implant, patch, ring, Depo) and non-hormonal methods (copper IUD, barrier, FAM).
- Conditions — for example, PCOS, endometriosis, or fibroids.
- Auto-calculated stats — cycle length, period length, regularity, and typical flow are derived from your period log and shown as read-only values. They update automatically as you add more entries.
Logging periods
In the cycle editor, use the period log to record individual periods. For each period you can enter:- Start and end date
- Flow level for that period
- Symptoms — choose from 17 options including Cramps, Mood swings, Fatigue, Bloating, Headache, Acne, Breast tenderness, Insomnia, Back pain, Nausea, Hot flashes, Night sweats, Anxiety, Food cravings, Spotting, Clots, and Dizziness
- Free-text notes
Regularity is classified as regular (low variation), irregular (moderate), or very irregular (high). Typical flow reflects the most common flow level from your last six entries.
Cycle phases and phase-aware reference ranges
getbased resolves each blood draw independently. Explicit phase context saved with that draw is used first. When there is no recorded context, getbased can estimate a phase from the period log only for an active, natural, regular cycle without hormonal contraception.
For estradiol, progesterone, LH, and FSH, getbased replaces the single flat built-in range with an assay-sourced range for the phase at the time of that draw. Each affected point is labeled as a recorded or predicted phase range. Its status throughout charts, marker details, tables, alerts, and AI context uses that dated range.
Predicted phase ranges are omitted for hormonal contraception, non-cycling states, and irregular or uncertain cycle context. getbased leaves the result unrated against phase rather than presenting a guess as a known range.
Chart layer: draw-phase labels
Open the Layers dropdown in the chart area and enable Cycle Phases. A compact pill appears only above a measured data point that has reliable phase context:
When cycle day is known, the label also includes it, such as
L · D21. Hover over the pill to see the detailed phase, cycle day, whether it was recorded or predicted, and the range used for that date.
The labels are deliberately attached to observations rather than drawn as broad background bands. Empty time between blood draws does not imply that getbased knows your exact phase throughout that whole interval.
Next best blood draw date
The Cycle section shows a recommendation for your next optimal blood draw window — the early follicular phase (days 3–5), when hormone baselines are most consistent and most comparable between cycles. This removes the guesswork from scheduling lab appointments.Perimenopause detection
If you are 35 or older and have logged four or more periods, getbased watches for patterns that may suggest perimenopause:- Cycles gradually lengthening over time
- Increasing cycle-to-cycle variability
- Cycles frequently exceeding 38 days
- Predominantly heavy flow
- Vasomotor symptoms (hot flashes, night sweats)
- Possible skipped cycles (gaps greater than 1.5× your average cycle length)
This alert is informational — it is not a diagnosis. Discuss any concerns with your doctor.
Iron alerts during heavy periods
If you have logged recent heavy flow, getbased cross-references your ferritin, hemoglobin, and iron levels and surfaces an alert in one of three states:- Critical — one or more values are below the reference range.
- Warning — values are in the bottom 25% of the reference range.
- Informational — you have heavy flow logged but no iron panel has been run yet.