Progesterone-what you need to know if you want to make a baby

Progesterone is an important reproductive hormone produced primarily by the ovaries after ovulation. It plays a key role throughout the menstrual cycle and is involved in reproductive health, the menstrual cycle, bone health, metabolism and mood.

When it comes to your menstrual cycle, progesterone has a particularly important job.

What Happens to Progesterone During Your Cycle?

After ovulation, the follicle that released the egg becomes the corpus luteum, which produces progesterone.

This marks the beginning of the luteal phase, the second half of your menstrual cycle.

Progesterone rises after ovulation and helps prepare the lining of the uterus for a potential pregnancy. It also causes a small increase in basal body temperature, usually around 0.2–0.5°C, which is why tracking your temperature can provide useful clues about whether ovulation has occurred.

If pregnancy doesn't occur, progesterone eventually falls and you get your period.

If pregnancy does occur, progesterone remains elevated to help support the uterine lining during early pregnancy.

What Does Your Temperature Tell You?

Your cycle is giving you information every month. Learning to recognise these patterns can be a valuable part of understanding your reproductive health.

If your basal body temperature has risen this can be a useful sign that ovulation has occurred.

If you DON’T see a clear temperature shift, it may suggest that ovulation did not occur, although temperature tracking has limitations and should not be used on its own to diagnose anovulation or progesterone deficiency.

What Can Low Progesterone Be Associated With?

Lower progesterone levels or inadequate progesterone production after ovulation may be associated with menstrual and fertility concerns such as:

• Spotting before your period

• Short or irregular luteal phases

• Irregular menstrual cycles

• PMS symptoms

• Breast tenderness

• Changes in menstrual flow

• Difficulty conceiving

• Some fertility and early pregnancy concerns

There can be many reasons for disrupted ovulation or progesterone production, which is why it's important to look at the whole picture, rather than focusing on one hormone in isolation.

Supporting Healthy Progesterone Starts With Supporting Ovulation

Healthy progesterone production depends on healthy ovulation.

This means that supporting your menstrual cycle isn't simply about trying to "boost progesterone". It's about understanding why ovulation may be disrupted in the first place.

Your hormones respond to your overall environment, including nutrition, energy availability, stress, sleep, exercise and underlying health conditions.

Some factors that may influence ovulation and reproductive hormones include:

• Chronic stress

• Inadequate food or calorie intake

• Nutrient deficiencies

• Significant changes in body weight

• Thyroid dysfunction

• Insulin resistance

• Polycystic ovary syndrome (PCOS)

• Excessive exercise

• Poor sleep

• Inflammation and underlying health concerns

This is why at NourishLife Chinese Medicine, we don't believe in looking at one hormone in isolation.

We look at the bigger picture.

Food First for Hormonal Health

Your body needs adequate energy and nutrients to support normal reproductive function.

Rather than focusing on a handful of "hormone-balancing" foods, aim for a varied, nourishing diet containing plenty of:

• Colourful vegetables

• Fruits

• Whole grains and complex carbohydrates

• Quality protein

• Healthy fats

• Nuts and seeds

• Legumes

• Oily fish

Foods such as sweet potato, pumpkin, broccoli, cauliflower, leafy greens, citrus fruits, bananas, chickpeas, beans, seeds and other nutrient-dense whole foods can all contribute to a healthy, balanced diet.

And don't underestimate carbohydrates.

Your body requires adequate energy availability to support reproductive function. Restricting food too heavily or consistently under-fuelling can interfere with normal menstrual and ovulatory function.

Food first. Always.

Supplements may have a role when there is a demonstrated deficiency or a specific reason to use them, but they should complement a nourishing diet rather than replace it.

Lifestyle Matters Too

Hormonal health isn't just about food.

Prioritise sleep

Consistent, restorative sleep supports the body's hormonal and metabolic processes. Aim for a regular sleep routine and give your body enough time to recover.

Be mindful of stress

Chronic stress can influence the reproductive hormones involved in ovulation. Finding ways to regulate stress that genuinely work for you can be an important part of supporting cycle health.

That might mean walking, meditation, time outdoors, breathwork, yoga, social connection or simply creating more space in your week.

Don't overdo exercise

Movement is incredibly beneficial for your health, but more isn't always better.

Very high training loads combined with inadequate nutrition and recovery can disrupt menstrual cycles and ovulation.

Your body needs both movement and recovery.

Get outside

Morning light can be a lovely way to start your day and may support healthy circadian rhythms and sleep patterns. Think of it as one small piece of the bigger hormonal-health puzzle rather than a magic hormone fix.

And yes, spending time with people you love matters too. Connection, laughter and doing things that make you happy are important parts of overall wellbeing.

What About Supplements?

There are a number of supplements that are often discussed in relation to menstrual health and ovulation, including:

• Vitex agnus-castus

• Maca

• Evening primrose oil

• Magnesium

• Vitamin B6

• Vitamin D

• Melatonin

But this is where individualisation becomes important.

Just because something is marketed as a "hormone balancing" supplement doesn't mean it's right for you.

Some supplements can interact with medications or may not be appropriate during pregnancy or when trying to conceive. If you're considering supplementation, it's worth discussing it with your qualified healthcare practitioner.

More supplements does not equal better hormones.

Can Acupuncture Support Hormonal Health?

Acupuncture is often used as part of an integrative approach to menstrual and reproductive health.

At NourishLife Chinese Medicine, we consider your menstrual cycle, symptoms, lifestyle and overall health when developing an acupuncture treatment plan.

Acupuncture should not be viewed as a treatment that simply "sends blood flow directly to the ovaries" or guarantees increased progesterone. Rather, it can be incorporated alongside appropriate medical care, nutrition and lifestyle support as part of a broader approach to wellbeing and reproductive health.

How Do You Test Progesterone?

Progesterone is usually assessed with a blood test, although the timing of the test is extremely important.

Progesterone rises after ovulation and fluctuates considerably throughout the luteal phase. A blood test is commonly performed approximately seven days after ovulation, rather than automatically using a particular calendar day for every woman.

For example, if you ovulate around day 14, testing around day 21 may be appropriate. But if you ovulate on day 18, testing on day 21 may be too early.

This is why understanding when you actually ovulate is important when interpreting progesterone results.

Basal body temperature, cervical mucus changes and ovulation predictor kits can provide useful information about your cycle, although none is perfect.

Most importantly, don't interpret a progesterone number in isolation. Your healthcare practitioner can help interpret your result alongside your cycle history, symptoms and other investigations.

Progesterone & Pregnancy

Progesterone is essential for establishing and supporting pregnancy.

After ovulation, progesterone helps prepare and maintain the uterine lining for implantation. During early pregnancy, progesterone remains important while the placenta gradually takes over hormone production.

Low progesterone levels can be seen in some pregnancies that are not progressing normally, but a low progesterone result does not by itself mean that a miscarriage will occur.

Progesterone treatment is appropriate in some specific clinical situations, but it should only be used under the guidance of a qualified medical professional.

If you are pregnant and experiencing bleeding, pain or other concerning symptoms, seek appropriate medical care rather than relying on supplements or complementary therapies alone.

Your Hormones Are Part of a Bigger Picture

When it comes to progesterone, the goal isn't simply to chase a higher number.

Healthy reproductive hormones depend on a body that has enough energy, nutrients, rest and support to ovulate regularly.

At NourishLife Chinese Medicine, we take a holistic approach to women's health and fertility. We look beyond one hormone or one symptom to understand what's happening throughout your cycle and across your overall health.

Your period is not just something you have to put up with each month. It's valuable information about what is happening inside your body.

Learning to understand your cycle can be the first step towards understanding your hormones, supporting your wellbeing and making informed decisions about your fertility.

If you're concerned about your progesterone levels, menstrual cycle or fertility, speak with a qualified healthcare practitioner who can help you investigate the underlying factors and create an approach that's right for you.