If you’ve been trying to conceive and it’s taking longer than you expected, you may be wondering why.
In Melbourne, fertility problems affect around one in six people, and there are many reasons why pregnancy can take time. Your age, general health, lifestyle and reproductive health can all play a part. Sometimes there’s a clear explanation. Sometimes several smaller factors are involved.
Understanding what may be affecting your fertility can give you a clearer picture of where things stand and what your options might be.
In this article, we look at the factors that can influence your chances of conceiving, including what the research tells us about age and lifestyle. We also explain some of the common causes of infertility and where fertility testing and treatment in Melbourne may fit into the conversation.
Why Understanding These Factors Matters
Your fertility is influenced by several factors working together, including egg and sperm health, hormones, ovulation, the uterus and fallopian tubes, as well as your general health.
If conception is taking longer than expected, there may be one factor involved or several. Age, health conditions and aspects of lifestyle can all play a role. Understanding what’s relevant to you can give you a clearer picture of what may be happening.
Some lifestyle changes can support fertility. Other factors may need medical assessment. Fertility testing can look at ovulation, ovarian reserve, sperm health and the reproductive organs to help your specialist understand what may be affecting your chances of conceiving and what options may be appropriate.
Age and Fertility
Age is one of the main factors that influences female fertility. You’re born with all the eggs you’ll have, and both the number and quality of those eggs change over time.
These changes happen gradually and vary from person to person. Fertility generally starts to decline in the early thirties, with the decline becoming more noticeable from the mid-thirties. Understanding how age affects egg number and quality can help give you a clearer picture of your fertility and what this may mean for your plans.
- Under 35: Fertility is generally at its highest, though individual variation is significant.
- 35 to 37: Egg quantity and quality begin a steeper decline. Conception can take longer, and the risk of chromosomal abnormalities rises.
- 38 and older: The decline continues more rapidly. Miscarriage rates increase, and the chance of conceiving each cycle drops considerably.
Male fertility can also change with age, although this tends to happen more gradually. Sperm quality, movement and DNA integrity may decline over time, particularly from the mid-forties, which can influence how long conception takes and some pregnancy outcomes.
Age is one part of the fertility picture. If you’re 35 or older and have been trying to conceive for six months, it may be helpful to speak with a fertility specialist. An earlier assessment can help you understand where things stand and whether any further testing is worth considering.
Lifestyle Factors That Influence Fertility
Lifestyle factors can influence fertility at any age. While they don’t change the natural effects of ageing on egg number and quality, they are one area where you may be able to make changes that support your reproductive health.
Body Weight
Body weight can influence fertility because it affects some of the hormones involved in ovulation and sperm production. In women, being underweight can reduce the hormone signals needed for regular ovulation, while a higher body weight can affect insulin and hormone levels and make cycles less regular, particularly for people with PCOS. In men, a higher body weight is also associated with changes in testosterone levels and sperm health, including sperm quality and movement.
Smoking
Smoking affects fertility in both men and women. In women, it accelerates the loss of egg quality and quantity and is linked to earlier menopause. In men, it reduces sperm count, motility, and DNA integrity. Smoking also lowers the success rates of fertility treatments such as IVF.
Alcohol and Recreational Drug Use
Regular or heavy alcohol consumption can disrupt ovulation and hormone balance, and is associated with lower sperm quality in men. Most fertility specialists recommend minimising or stopping alcohol intake while trying to conceive. Recreational drug use has similarly documented negative effects on both egg and sperm quality.
Diet and Nutrition
A diet low in processed foods and rich in whole grains, vegetables, healthy fats, and lean protein supports the hormonal and metabolic processes involved in conception. Specific nutrients, including folate, vitamin D, iron, and antioxidants, play a direct role in reproductive health for both partners.
Exercise
Moderate, regular exercise supports healthy weight and hormone balance. Excessive high-intensity exercise, particularly at low body weight, can suppress ovulation. As with most lifestyle factors, balance matters more than extremes in either direction.
Stress
The relationship between stress and fertility is complex and often overstated in casual conversation, but chronic, significant stress can affect hormonal regulation and, in some cases, cycle regularity. Stress is rarely the sole cause of fertility problems, but managing it supports overall wellbeing during what can be a difficult process.
Environmental and Occupational Exposures
Exposure to certain chemicals, heavy metals, and excessive heat (for men, this includes frequent hot baths, saunas, or laptop use directly on the lap) can affect fertility. If your work involves exposure to industrial chemicals, pesticides, or radiation, it is worth discussing this with your GP or fertility specialist.
Causes of Infertility: The Medical Factors
Beyond age and lifestyle, underlying health conditions can also affect fertility. Around a third of fertility problems involve female factors, around a third involve male factors and the remaining cases involve a combination of factors or have no clear cause identified after testing. Understanding what may be contributing can help your specialist decide which tests are useful and what options may be appropriate for you.
Female Factors
- Ovulation disorders: Conditions like PMOS disrupt the hormonal signalling required for regular ovulation, making it one of the most common causes of female infertility.
- Endometriosis: Tissue similar to the uterine lining grows outside the uterus, which can affect the ovaries, fallopian tubes, and the ability of an embryo to implant.
- Fallopian tube damage or blockage: Often the result of past infection, surgery, or endometriosis, this can prevent sperm and egg from meeting.
- Uterine conditions: Fibroids and uterine polyps can interfere with implantation or increase the risk of miscarriage.
- Diminished ovarian reserve: A lower number of remaining eggs than expected for age, which can occur independently of other conditions.
Male Factors
- Low sperm count or poor motility: Sperm may be present in insufficient numbers, or may not move effectively enough to reach and fertilise an egg.
- Abnormal sperm morphology: Irregularly shaped sperm can have reduced fertilising ability.
- Varicocele: An enlargement of veins within the scrotum that can affect sperm production and quality.
- Hormonal imbalances: Low testosterone or other hormonal disruptions can reduce sperm production.
Unexplained Infertility
In around ten to fifteen percent of cases, no clear cause is found even after full testing of both partners. This does not mean nothing can be done. It usually means treatment is guided by probability and response rather than a single diagnosis, and many people with unexplained infertility go on to conceive with the right treatment plan.
When Testing Makes Sense
If you’re under 35, fertility assessment is generally recommended after 12 months of trying to conceive. If you’re 35 or older, you may consider an assessment after six months. It can also be helpful to speak with a specialist sooner if you have irregular cycles, a history of pelvic infection or surgery, or if either partner has a known fertility concern.
Fertility testing looks at the different factors that may be influencing your chances of conceiving. For women, this may include hormone blood tests, an assessment of ovarian reserve and a pelvic ultrasound to look at the uterus and ovaries. For men, a semen analysis looks at sperm count, movement and shape. Testing both partners can help your specialist build a more complete picture of your fertility as a couple.
A fertility health check brings these assessments together so you can understand where things stand. Your specialist can talk you through the results, explain what they mean and discuss what may make sense from here. Depending on what you find, this might include lifestyle changes, further monitoring, additional testing or fertility treatment.
Fertility Treatment Options
What treatment looks like depends entirely on what testing reveals. There is no single pathway, and a good specialist will recommend the option that gives you the best realistic chance while avoiding intervention you do not need.
Common approaches include:
- Ovulation induction: Medication to support regular ovulation, often the first step for women with ovulatory dysfunction such as PMOS.
- IUI (intrauterine insemination): Prepared sperm is placed directly into the uterus around the time of ovulation, often combined with ovulation induction.
- IVF (in vitro fertilisation): Eggs are retrieved and fertilised in a laboratory before an embryo is transferred to the uterus. This is typically recommended for tubal factor infertility, more significant male factor issues, or when other approaches have not led to pregnancy.
- ICSI: A single sperm is injected directly into an egg, generally used when sperm quality is a significant factor.
- Surgical options: In some cases, such as fibroids or endometriosis, surgery may improve the chances of natural conception or the success of other treatments.
Fertility treatment at a specialist clinic is built around your specific results rather than a standard protocol. Age, ovarian reserve, the cause identified through testing, and how you respond to initial treatment all shape the plan, and it is reviewed and adjusted as your cycles progress.
What You Can Do Now
If you are trying to conceive, a few practical steps apply regardless of what testing eventually shows:
- Maintain a body weight in the healthy range where possible.
- Stop smoking and limit alcohol.
- Eat a balanced diet with adequate folate and vitamin D.
- Keep exercise moderate rather than extreme.
- Track your cycle to understand your fertile window.
- See a GP or fertility specialist if you meet the criteria above for testing.
These steps will not resolve every cause of infertility, but they create the best possible conditions for both natural conception and any treatment that follows.
Your Next Step
Fertility problems in Melbourne are common, and in most cases there is a clear reason behind them and a path forward once that reason is identified. At Create Fertility Melbourne, our specialists assess age, lifestyle, and health factors together, so your treatment plan is built around your actual circumstances rather than a generic timeline. If you would like to understand what may be affecting your fertility, book a consultation with our team.
Fertility concerns are common, and there can be many reasons why conception is taking longer than expected. At Create Fertility Melbourne, our specialists look at your age, lifestyle, reproductive health and medical history together to understand what may be affecting your fertility.
From there, we can explain what we find and talk through what your options may look like. If you’d like a clearer picture of where your fertility stands, you can have a conversation with our team.
Frequently Asked Questions
At what age does fertility start to decline significantly?
Fertility begins a gradual decline through the late twenties and early thirties, with a more noticeable drop from around age 35 and a steeper decline from 38 onward. Male fertility declines more gradually, typically from the mid-forties.
Can lifestyle changes alone fix fertility problems?
Sometimes, particularly where weight, smoking, or alcohol are significant contributing factors. However, lifestyle changes cannot resolve structural or hormonal conditions such as blocked fallopian tubes or diminished ovarian reserve, which is why testing is important before assuming lifestyle is the only issue.
How long should we try before seeing a fertility clinic in Melbourne?
Twelve months if you are under 35, six months if you are 35 or older. Earlier assessment is reasonable if you have irregular cycles, a known health condition, or a partner with a known fertility concern.
Is infertility usually a female issue?
No. Roughly a third of cases involve a female factor, a third involve a male factor, and the remainder involve both partners or are unexplained. Testing both partners together gives the most accurate picture.
What happens after fertility testing?
Your specialist reviews your results and discusses what they indicate. Depending on the findings, this may lead to a lifestyle adjustment period, ovulation monitoring, or moving directly into treatment such as IUI or IVF.
