PMDD doesn't have to ambush you.

No, on its own, no wearable can — PMDD is a clinical diagnosis made by a qualified provider. But together with the Belle App and symptom tracking, Belle Ring can be one of the most useful tools on the road to getting one. It helps you understand yourself: where you are in the cycle, what your body is doing across the luteal week, and how that maps onto how you actually feel. Over time you arrive at appointments with a clear, cycle-aligned picture instead of trying to remember "was it bad this month?" — and that's often what tips a careful provider toward a diagnosis they would otherwise want more data to make.

Yes — Belle Ring is still useful if you're on hormonal contraception. With a combined pill, ovulation is suppressed and the natural luteal pattern flattens, so instead of a cycle forecast you get a clear view of how your body is actually doing on this formulation: sleep, HRV, recovery, day-to-day mood, and how the active vs placebo week feels for you. For POPs, IUDs and the patch the picture varies, and Belle adapts based on the method you tell it about. Many people first realise their pill isn't quite the right fit by looking at this data.

Yes — SSRIs can really help, and many providers now prescribe luteal-only, low-dose regimens rather than continuous ones. Belle's forecast can help you and your clinician land on the right start day. Beyond medication, the ring also helps you understand yourself better — sleep, stress, recovery — so you can see, in your own data, whether what you try is actually working for you or not.

It depends a little on your cycle length and how regular things are — but for most people, we have enough signal within a cycle or two to start building a forecast, and the picture sharpens with each cycle that passes. If your cycles are irregular or sometimes anovulatory, give it a bit more time; even before a full forecast lands, the early temperature and HRV trends usually surface patterns that are already useful to see.

Anovulatory cycles are flagged. Belle Ring uses temperature and HRV signatures to detect them, so you can see — and bring to a clinician — when a month didn't ovulate.

Yes — and that's becoming one of the most useful parts of Belle Ring. You decide with whom you share, when, and for how long: a clinician, a partner, a friend who tracks alongside you, or nobody at all. We're working closely with a growing network of therapists, psychiatrists and gynaecologists to learn which views actually help in a session — pain timing, mood-by-cycle-day, sleep collapse around luteal — and shaping the export so it's the page a 50-minute appointment can actually use. If your provider isn't in our network yet, you can still share a tidy PDF or a private link they can read on their own time.