Your period used to show up like clockwork. And then one month, it just... didn't.

Maybe you thought it was a fluke. Maybe you took a pregnancy test (negative). Maybe you waited another month, and then another, and now you're here, Googling at midnight, wondering what's wrong with your body.

Here's what you need to know: a missing period is your body's way of telling you something. And in most cases, it's reversible.

Reason #1: You’re Not Eating Enough

This is the most common cause of missing periods, and the one most women don't want to hear.

Your body needs a certain amount of energy to support ovulation. If you're consistently eating less than your body needs (whether through intentional restriction, dieting, or just not eating enough to support your activity level), your body will shut down reproductive function to conserve energy.

This doesn't mean you have to be severely underweight. Many women with missing periods are at a 'normal' weight. But if you've lost weight recently, if you're eating 'clean,' if you're skipping meals or restricting food groups, that might be enough to suppress ovulation.

What to do about it:

Eat more. Three meals a day, plus snacks. Include carbs, fats, and protein at every meal. Stop counting calories. Stop restricting. Your body needs fuel to function, and reproduction is one of the first things to go when it doesn't have enough.

Reason #2: You’re Over-Exercising

Exercise is a stressor. And while some stress is good, too much stress suppresses your hormones.

If you're doing high-intensity workouts multiple times a week, training for a marathon, or spending hours at the gym, you might be pushing your body past its capacity to recover. Add in under-eating (see #1), and you've got a perfect recipe for a missing period.

What to do about it:

Scale back. Replace intense workouts with walking, gentle yoga, or recreational movement. If you're recovering from hypothalamic amenorrhea, you may need to stop intense exercise entirely for several months. Your period is worth more than your workout streak.

Reason #3: You’re Under Chronic Stress

Emotional and psychological stress can absolutely stop ovulation. Your body doesn't differentiate between 'I'm being chased by a predator' stress and 'I'm drowning in work and family obligations' stress. Stress is stress, and chronic stress suppresses reproductive hormones.

When your body perceives that you're under threat, it prioritizes survival over reproduction. Makes sense from an evolutionary standpoint. Not so helpful when you're trying to get your period back.

What to do about it:

You can't eliminate all stress, but you can learn to regulate your nervous system. Prioritize sleep. Practice breathwork or meditation. Learn somatic tools to discharge stress from your body. Say no more often. Your period won't return if your body thinks you're in constant danger.

Reason #4: You Just Came Off Birth Control

Hormonal birth control shuts down your natural hormone production. When you stop taking it, your body has to restart the entire system. For some women, that happens within a few weeks. For others, it can take months.

It's normal for your period to take up to 3 months to return after stopping birth control. If it's been longer than that, you're likely dealing with post-pill amenorrhea, which is often caused by a combination of the factors listed above (under-eating, over-exercising, stress, nutrient depletion).

What to do about it:

Give it 3 months before you start to worry. During that time, focus on eating enough, reducing exercise intensity, managing stress, and replenishing nutrients that birth control depletes (B vitamins, magnesium, zinc). If your period hasn't returned after 6 months, get help.

Reason #5: You Have an Underlying Medical Condition

Sometimes a missing period is caused by something that requires medical intervention. This is less common than the lifestyle factors above, but it's important to rule out.

Conditions that can cause missing periods:

PCOS (polycystic ovary syndrome)
Thyroid dysfunction (hypo or hyperthyroidism)
Elevated prolactin
Premature ovarian insufficiency
Pituitary tumors (rare, but worth ruling out)

What to do about it:

Get labs done. At minimum, you want to check TSH (thyroid), prolactin, FSH, LH, estradiol, and progesterone. If you have other symptoms (excess hair growth, severe acne, rapid weight gain), ask your doctor about testing for PCOS or other hormonal conditions.

How Do You Know Which One It Is?

Honestly? It's often a combination. Most women with missing periods aren't dealing with just one issue. They're under-eating AND over-exercising AND stressed. Or they came off birth control AND aren't eating enough AND have depleted nutrients.

The good news is that the foundational steps (eat more, move less, manage stress) address most of the common causes. Start there. If you're not seeing results after 3-6 months, dig deeper with lab work and professional support.

But don't wait endlessly hoping things will fix themselves. Your body is trying to tell you something. Listen to her <3.

When to Get Help

You don't have to figure this out alone. Consider working with a coach or practitioner if:

Your period has been missing for 3+ months
You've tried eating more and reducing exercise but nothing's changing
You're struggling with body image or food anxiety
You're trying to conceive
You just want guidance from someone who's been there

I work with women recovering their periods every single day. My 6-month coaching program is designed to help you identify what's causing your missing period, address the root cause, and restore your cycle naturally.