Am I in perimenopause?
Start with the data you already have.

"Is it work stress, getting older, or perimenopause?"

It often begins in the late 30s or early 40s. A cold sweat at 3:15 AM for no apparent reason. Brain fog during an important presentation. A cycle that becomes unpredictable, or fatigue that runs deeper than usual. When these come up in conversation, a common response is "you're too young for that" or "it's probably just stress." GracePeriod is built to answer that question with evidence from your own physiological history rather than an impression formed on a difficult week.

What is a perimenopause tracker?

A perimenopause tracker is an app for logging the cycle changes and symptoms that mark the years leading up to menopause, when cycles become irregular and symptoms like hot flashes or mood changes can start well before periods stop entirely. GracePeriod is a perimenopause tracker for iPhone that reads existing Apple Health cycle and symptom history, so it has a baseline to work from immediately rather than starting from a blank slate.

Skip the 30-day wait for a baseline

Most tracking apps start from zero, asking for weeks of daily check-ins before the first useful chart appears. GracePeriod works from the history already on your phone. It reads existing sleep, resting heart rate, temperature, and cycle data through Apple Health and establishes your personal baseline right away. New symptoms are then compared against that baseline rather than a population average, so a lengthening gap between cycles or a shift in sleep quality becomes visible from the start.

Why perimenopause is harder to track than menopause

Menopause is a single point in time, twelve months without a period. Perimenopause is the stretch before it, and it resists simple tracking because nothing about it is consistent: cycles can shorten, lengthen, skip, or double up, and symptoms can appear in some months and not others. A tracker built around a fixed schedule misses this. GracePeriod instead logs whatever actually happens, cycle by cycle and symptom by symptom, and lets the irregularity itself become visible as a trend rather than staying an isolated frustration.

Early signs GracePeriod helps you see

• Sleep disruption and early waking. Hormonal fluctuations can affect sleep stability, and GracePeriod surfaces your specific disruption pattern from Apple Health sleep data.
• Heart rate variability trends. Estrogen plays a role in nervous system regulation, and shifts in nocturnal HRV often line up with hot flashes, anxiety, or fatigue. GracePeriod reads HRV from Apple Health and compares it against your own baseline.
• Cycle length and timing. Skipped cycles, shortened cycles, and the widening range between them are tracked as a trend.
• Temperature rhythms. On supported Apple Watch models, subtle nighttime temperature changes are read from Apple Health alongside logged symptoms.
• Hot flashes and night sweats. Logged in seconds and mapped against the rest of your data.
• Mood and irritability. Tracked next to sleep and cycle information, so shifts have context.

Track perimenopause in GracePeriod: a 3-step start

1. Let Apple Health fill in the past. GracePeriod reads existing cycle, sleep, and heart rate history so the baseline reflects real data, not a fresh start.
2. Log cycles and symptoms as they occur. Skip the assumption of a fixed schedule and log what actually happens.
3. Watch the trend take shape. Over a few months, GracePeriod shows the range and direction of change in cycle length and symptoms.

A clearer conversation with your doctor

Perimenopause is often assessed through a pattern of symptoms and cycle history rather than a single test, since hormone levels can fluctuate substantially from day to day during this phase. GracePeriod's doctor-prep summary organizes months of cycle and symptom data into a format built for that conversation, so the pattern is visible at a glance instead of scattered across memory.