Cycle Prediction Dashboard

Cycles Tracked

16

May 2024 – Mar 2026

Mean Cycle

44d

Range: 13–78 days

Avg Period

5.8d

Range: 2–10 days

Current Cycle Day

32

Since Mar 22, 2026

Show:

Skin Temp & RHR over Time

Red bands = menstruation · Green dashed = today

Daily Weight Change

Day-over-day delta (lbs) · Zero line = no change · Red bands = menstruation

Discharge Type Log

Days with positive journal entries

Egg white (fertile)

Creamy

Sticky

Spotting

Average across all 16 cycles. Day 0 = menstruation start. Red dashed line = D0.

Skin Temp (°C)

Rises in luteal phase, drops before period

Resting Heart Rate (bpm)

Slight luteal phase elevation typical

Body Weight (lbs)

Includes long-term weight loss trend

HRV (ms)

Lower HRV common in luteal phase

Symptom Frequency — D-14 to D-1 (%)

% of cycles with symptom reported in the 2 weeks before period start

🔬 Pattern Analysis

Skin temp signal present but noisy — avg rises ~+0.5–0.8°C follicular→luteal, then drops ~0.3°C in the 3d before period. Only 16 cycles limits reliability.
RHR stable throughout (74–79 bpm). Elevated RHR (>82) is more likely illness/stress than cycle phase.
Symptom logging sparse — most symptoms <10% of cycles. Log daily in WHOOP journal to build a meaningful signal.
Spotting is the most reliable near-term indicator — present in 19–25% of cycles at D0–D+2. Spotting → period within 24h.

Egg-white = ovulation window. Creamy/sticky = post-ovulatory luteal. Spotting = peri-menstrual.

Discharge Frequency by Week

% of cycles with each type · weeks relative to period start

Cycle Phase Map

💡 Key Cycle Insights

Egg-white discharge peaks ~D-26 to D-20 before period — consistent with ovulation timing even in irregular perimenopausal cycles. Once observed, expect period in ~20–26 days.
Creamy discharge clusters D-22 to D-14 — mid-luteal phase.
Discharge logging compliance is low — most days have no entry. Log daily for reliable pattern detection.
Some cycles may be anovulatory — absence of egg-white discharge does not predict a longer cycle in perimenopause.

32

cycle day

Last period: Mar 22, 2026

Today: Apr 23, 2026

Prediction Window

May 5 – Jun 8

Day 44 (mean) → Day 78 (max)

Days to Mean Cycle

12d

If 44d cycle → ~May 5

Estimated Phase

Mid-Luteal

Based on cycle day 32 / mean 44d

This Cycle — Last 32 Days (Mar 22 → Apr 23)

Skin temp and RHR since last period started

What to Watch For

Signal	Threshold	Strength
🌡 Temp drop	≥0.3°C below recent baseline	Moderate
💧 Spotting	Any spotting → period within 24–48h	Strong
❤️ RHR drop	>2 bpm drop after elevated luteal	Weak
⚖️ Weight	Fluid retention spike then sudden drop	Weak
😣 Bloating	Log in WHOOP — premenstrual signal	Moderate*

*Low signal due to sparse journal logging

Recent WHOOP (Last 14 Days)

Date	RHR	Temp °C	Flags

⚠️ Temp Spike Apr 2135.58°C — 1°C above recent baseline. Could be fever, stress, or mid-luteal peak. Watch for drop back to <34.8°C over next 2–3 days.

📅 Cycle Day 32 of ~44Late luteal phase. Begin watching for spotting and temp drop. Statistical range: 12d to average close, up to 46d before max cycle.

📓 Improve PredictionsLog discharge type + mood daily in WHOOP journal. Consistent logging over 6 more cycles will significantly sharpen prediction accuracy.

🌙 Cycle Prediction Dashboard