What happens to your periods in Perimenopause

The Menopause Mentor
3 days ago
3 min read

What Actually Happens to Your Periods in Perimenopause

If your periods have suddenly gone rogue…

coming earlier, later, heavier, lighter… or just doing whatever they fancy…

You’re not imagining it.

Welcome to perimenopause — the phase where your hormones start shifting, and your cycle stops playing by the old rules.

Let’s break down what’s actually happening — and more importantly, what you can do about it.

What’s Going On Inside Your Body?

Perimenopause isn’t one clean, smooth transition.

It’s a hormonal rollercoaster — mainly involving oestrogen and progesterone.

Here’s the key bit most women aren’t told:

👉 Ovulation becomes irregular

And when ovulation becomes inconsistent, everything else starts to change.

1. Progesterone Drops First

Progesterone is your calming, balancing hormone — and it’s only produced after ovulation.

If you’re not ovulating regularly…

you’re not producing much progesterone.

This creates what’s known as oestrogen dominance (even if oestrogen isn’t actually high).

This can lead to:

Heavier periods
Longer periods
More clotting
Breast tenderness
Increased PMS symptoms

2. Oestrogen Becomes Unpredictable

Oestrogen doesn’t just decline — it fluctuates wildly.

One month it can be high, the next it can crash.

This is why your periods might:

Come closer together (every 2–3 weeks)
Disappear for a couple of months
Suddenly be very heavy or very light
Start and stop randomly

3. Your Uterine Lining Responds to the Chaos

Your womb lining (endometrium) thickens in response to oestrogen.

Without consistent progesterone to regulate it, the lining can build up more than usual…

➡️ Resulting in heavier, longer bleeds

➡️ Or sometimes delayed periods followed by a “flooding” cycle

Common Period Changes in Perimenopause

If you’re experiencing any of these — it’s very common:

Shorter cycles (e.g. every 21 days)
Longer cycles (skipping months)
Heavier bleeding or flooding
Lighter, shorter periods
Spotting between cycles
Brown or irregular discharge
Increased cramping or no pain at all (both can happen)

When Should You Get It Checked?

Even though changes are normal — don’t ignore your body.

👉 Speak to your GP if you experience:

Bleeding that lasts longer than 7–10 days
Very heavy bleeding (soaking through protection every 1–2 hours)
Bleeding after sex
Bleeding after menopause (12 months without a period)
Large clots regularly

Always rule out anything underlying — don’t just “put up with it.”

Top Tips to Support Your Body Through It

This is where you can take back some control.

1. Track Your Cycle (Even If It’s Irregular)

Patterns still exist — even in the chaos.

Track:

Bleed days
Symptoms
Mood
Sleep
Energy

This helps you understand your version of perimenopause.

2. Prioritise Protein & Blood Sugar Balance

Blood sugar swings can worsen hormonal symptoms.

Focus on:

Protein with every meal
Fibre-rich veg
Healthy fats

This supports hormone regulation and energy.

3. Strength Train (Hormone-Aware)

This is non-negotiable in midlife.

Strength training helps:

Regulate insulin
Support metabolism
Improve mood and energy
Reduce body fat (which influences oestrogen)

4. Support Your Nervous System

Your tolerance to stress drops in perimenopause.

Chronic stress can:

Disrupt ovulation further
Worsen symptoms
Impact sleep and recovery

Daily basics matter:

Walking
Breathing
Slowing down (yes, really)

5. Look at Supplement Support (If Needed)

Evidence-based options may include:

Magnesium (sleep, mood, cramps)
Omega-3 (inflammation support)
B vitamins (energy + hormone metabolism)

Always tailor this to you — there is no one-size-fits-all.

6. Don’t Just “Push Through”

This is where so many women struggle.

What used to work… often doesn’t anymore.

More cardio…..Less food…..More restriction

➡️ Usually makes things worse

This phase requires a smarter, more supportive approach.

The Bottom Line

Your periods aren’t “broken.”

They’re responding to hormonal changes that are completely normal in this stage of life.

But just because it’s common…

doesn’t mean you have to struggle through it alone.

Let’s Keep the Conversation Going

If this resonated with you — you’re not alone.

💬 Come and get involved in the conversation over on Facebook, Instagram or YouTube — I share real, honest support for what midlife actually feels like, not just what it should look like.

🎧 And keep an eye out…

A brand new podcast episode is coming soon where I’ll be diving deeper into what’s happening with your hormones, your cycle, and how to feel back in control again.

Need Support?

If your cycles feel all over the place, your energy is low, and your body doesn’t feel like your own anymore…

I can help you understand what’s happening — and more importantly, what to do about it.

💬 I offer free consultation calls where we can talk through your symptoms and create a simple, realistic plan for you.

Or, if you’re ready to take action now…

👉 My Meno-Method Online Plan gives you:

Hormone-aware workouts

Simple nutrition guidance

Support and accountability

A community of women going through the same thing

No extremes. No restriction. No burnout.

Just real, evidence-based support.