What is a relationship forecast?

A 7-day outlook for the two of you, written by her phone from her cycle: each day gets a weather bucket (sunny, partly cloudy, cloudy, stormy) and one concrete thing to do. It is not a mood prediction about her — it is a timing tool for him: when to plan, when to keep it quiet, when to bring food and skip the pep talk.

How does PinkyBond know which days will be rough?

Three inputs, all on her phone: the cycle phase for that day (the late luteal week carries the highest prior), her own history of rough days on that cycle day once at least three cycles and five rough days are logged, and the mood she logs in PinkyBloom. Nothing is sent to a server to compute it; PinkyBond only receives the finished 7-entry forecast — and only if she shares at the Mood or Full level.

Is this just “she’s hormonal” with extra steps?

No, and the product is built to make that framing impossible. Every hint is timing plus an action — never a cause. The coach and every notification are held to the same rule: no “hormones”, no “just moody”, no “time of the month”. The pattern turns “why are we like this” into “these four days are hard, plan around them”. That is a calendar problem, and calendar problems are solvable.

What does she see, and what does he see?

She sees everything: every rough day with its reason chip, the full overlay by cycle day, and a preview of exactly what he will see. He sees a coarse summary — the share of rough days per phase and a peak range like “cycle days 23–26” — plus the 7-day forecast. He never sees dates, reasons or her logs. She can turn the pattern off with one toggle, and Safety Mode sends neutral data instead.

How many rough days does it take before the pattern shows?

Three completed cycles and five rough days between the two of you. Until then both apps show a “collecting” state with a progress bar. Most couples reach it in about three months of ordinary use.

Does it work if she is pregnant, postpartum or in menopause?

The rough-day log works in every life stage. The cycle overlay needs a cycle, so in pregnancy, postpartum and menopause the forecast falls back to a steady “partly cloudy” week with a stage-specific hint (“follow her lead on energy today”, “take one thing off her plate”). Perimenopause keeps the cycle path.

Can he log rough days too?

Yes. Either partner marks a day, and his taps travel to her phone over the same end-to-end encrypted relay as everything else. If you both mark the same day it counts once. His check-in (mood and energy) also shows on her side, so the app never reads as one-way monitoring.

Relationship forecast

A 7-day weather report for the two of you

Every couples app treats the relationship as if it had no body in it. PinkyBond is the first one that knows the calendar: her phone turns her cycle and your shared rough days into a week of weather and one thing to do each day. Timing, not blame.

Tomorrow, between you

⛈ Plan nothing tonight. Show up, keep it quiet.

Thu ☀️ Fri ⛅ Sat ☁️ Sun ⛈ Mon ⛈ Tue ☁️ Wed ⛅

The insight no one had built

Couples experience recurring fights as an us problem. A large share of them are a when problem: they cluster in the premenstrual week, which is well documented in the research on PMS and PMDD and obvious to anyone who has lived it — and invisible in the moment. PinkyBloom already holds the one thing every other relationship app is missing: the clock.

So we added one tap. Either of you marks a rough day. After three cycles her phone can say something no couple has been able to see before without a therapist and a spreadsheet: “85% of our rough days fall on cycle days 23–26.” That sentence turns a character judgment into a calendar entry.

What goes into a day's weather

Her cycle phase

The prior. The last four days before a period carry the highest baseline; ovulation the lowest. Perimenopause keeps the cycle path; pregnancy, postpartum and menopause use stage hints instead.

Your rough days

Once the pattern is ready, her own rate of rough days on each cycle day is blended in — 60% her history, 40% the phase prior. Your couple, not the population average.

Her logged mood

If she logs mood in PinkyBloom, days that have historically been low for her get nudged one bucket darker. Optional; the forecast works without it.

Four buckets, one action each

☀️ Sunny
Great day for plans — suggest something.
⛅ Partly cloudy
Keep it easy today. Small check-ins go a long way.
☁️ Cloudy
If she vents tonight: listen, don’t fix.
⛈ Stormy
Plan nothing tonight. Show up, keep it quiet.

The hint vocabulary is a closed list and every line is tested against a blame-word filter before it ships. No hint names a cause.

Computed on her phone. Shared on her terms.

The overlay needs her cycle history, and her cycle history never leaves her phone — so the computation can only happen there. What crosses the encrypted relay is a finished summary: phase shares, a peak range, seven weather entries with hint ids. No dates. No reasons. No logs.

Basic sharing

Nothing. Phase only, as before.

Mood or Full sharing

Forecast, plus the pattern while her toggle is on.

“Share the pattern with him” off

Forecast only. One switch, instant.

Safety Mode

Neutral synthetic data. He cannot tell.

The same rule applies to the coach: it is instructed, in writing, never to attribute a mood or a conflict to hormones or her cycle, and to answer timing with one concrete action. Read the encryption architecture on /encryption.

What it is not

Not a diagnosis. Rough-day clustering is a pattern in your log, not a medical finding. If the premenstrual week is severe every month, that is worth a conversation with her doctor about PMDD — the app says so, and it never uses the word for you.
Not a prediction of her. The forecast is a plan for you. On a stormy day she may be perfectly fine; the instruction still holds, because showing up quietly costs nothing.
Not one-way. Your check-in (mood, energy, a note) shows on her side, and your rough days count too.