2 Minutes · Science-Backed

What is your Luteal Phase Surge Type?

Built for every woman’s cycle.

Your luteal phase is days 15–28 of your cycle. When progesterone drops and cortisol spikes, your nervous system enters threat mode. But every woman’s body responds differently.

This quiz identifies your unique Surge Type so you know exactly what is happening — and exactly what to do.

Why this matters

Most women have no idea their luteal phase is what is driving the monthly rage, tears, exhaustion or anxiety. Once you know your Surge Type, you finally understand what is happening in your body — and exactly what to do about it.

Before You Begin

You are not the only one

So many women describe the same two-week shift. Read a few of their experiences — then take the quiz to find your own Surge Type.

The Rage She Could Not Explain

“Every month, around day 20, I would become someone I didn't recognise. Snapping at my children, crying in the car on the way to work, convinced my relationship was falling apart. It took me years to realise it was always the same week. Once I understood it was my luteal phase — that my nervous system was literally in threat mode — everything shifted. I stopped blaming myself. That alone changed everything.”

— Sara, 34, teacher

The Exhaustion Nobody Believed

“I would hit a wall every single month and nobody around me understood why. My GP told me it was stress. My partner thought I was being dramatic. But I knew something was happening in my body. Learning about the cortisol surge in the luteal phase was the first time I felt like someone finally gave my experience a name. I am not dramatic. I am dysregulated. There is a difference.”

— Priya, 29, nurse

The Anxiety That Came From Nowhere

“The anxiety would arrive like a wave — no trigger, no warning. Just a heavy, dreadful feeling that something was wrong. I started tracking my cycle and realised it happened in the exact same window every month. Days 18 to 26. Without fail. Understanding the science behind it did not make the symptoms disappear, but it made them bearable. I finally stopped being afraid of myself.”

— Amina, 31, accountant

The Woman Who Thought She Was Falling Apart

“I genuinely thought I was developing anxiety disorder. I was googling therapists, convinced something was seriously wrong with my mental health. Then a friend mentioned the luteal phase and the cortisol connection. I cried reading about it — not because I was sad, but because I was relieved. I was not falling apart. My body was going through something real, something biological. I just needed the right tools.”

— Leila, 37, project manager

The Mood Swings That Affected Everything

“My mood swings were affecting my work, my friendships, my confidence. I would spend two weeks feeling like myself and two weeks feeling like a stranger in my own body. When I discovered somatic regulation — actually physically discharging that nervous system energy — it was the first approach that made any real sense to me. My luteal phase still comes every month. But now I have something to meet it with.”

— Fatima, 26, postgraduate student

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These stories represent experiences shared by many women and are illustrative of the luteal phase journey Selyse is designed to support.