For many couples, the expectation is that conceiving a second child will happen as easily as it did the first. So when it takes longer than expected, it can be confusing and emotional. 

This experience is known as secondary infertility, and it is more common than many realise.

At Child Fertility, care begins with understanding your story. Our Oxford-trained specialists take the time to understand your health, history, and goals so we can guide you with evidence-based guidance, tailored to you.

What is secondary infertility?

Secondary infertility refers to difficulty becoming pregnant after having had a previous pregnancy. By comparison, primary infertility refers to difficulty conceiving when a woman has never been pregnant before.

It may be appropriate for you to seek advice if: 

• You and your partner are under 35 and have been trying to conceive for 12 months without success, or 
• You are over 35 and have been trying for six months without success.

These timeframes are not rigid rules, but helpful markers. You may choose to seek guidance sooner, particularly if you have concerns about your cycle, reproductive health or medical or surgical history.

Importantly, many couples experiencing secondary infertility do go on to conceive, either naturally or with appropriate support.

What causes secondary infertility?

It can feel surprising when conception doesn’t happen as before, but fertility can change over time. Even subtle shifts in health or biology can influence how quickly pregnancy occurs.

Several factors may contribute to difficulty conceiving again. These can include:

• Age-related changes – Age remains one of the most important factors in fertility. Over time, both the number and quality of eggs decline, and the likelihood of chromosomal changes in embryos increases. This can affect both the chance of conception and the risk of miscarriage. As women move through their late 30s and 40s, cycles may also become less predictable, which can make conception more difficult. As men age their sperm quality can also reduce, affecting fertility and miscarriage rates.
• Ovulation and hormonal signalling – changes in the hormonal signals between the brain and the ovaries can affect whether ovulation happens regularly. This may be seen in conditions such as hypothalamic dysfunction, where stress, significant weight change, intense exercise, or other health factors can disrupt the cycle.
• PCOS – Conditions such as polycystic ovary syndrome (PCOS) or disruptions in the hormonal signals that regulate ovulation can affect cycle regularity and timing.
• Uterine and pelvic factors – Changes within the uterus, including fibroids, polyps, endometriosis, or scarring, may develop over time and influence implantation or pregnancy.
• Fallopian tube function – Previous infections, surgery, or endometriosis can sometimes affect whether the fallopian tubes remain open and functional.
• Male fertility factors – Sperm health can also change over time. Factors such as reduced sperm count, motility, or conditions like varicocele may play a role and are routinely assessed.
• Endometriosis – Endometriosis a condition where tissue similar to the uterine lining grows outside the uterus. 
• General health and lifestyle – Changes in weight, underlying medical conditions, or overall health can influence fertility in both partners.

Because fertility involves both partners and multiple biological processes, a comprehensive assessment is often the most helpful first step.

If you want to explore your fertility further, you can also visit our Female Fertility and Male Fertility pages for helpful insights.

Symptoms of secondary infertility

In many cases, secondary infertility does not cause obvious symptoms. Sometimes couples only become aware that something may be affecting their fertility after trying longer than expected. 

However, some reproductive health signs may include:

• Irregular or absent menstrual cycles
• Painful periods or pelvic discomfort
• A history of miscarriage
• Previous pelvic infection or inflammatory conditions

Men can also experience secondary infertility. Specialists usually start with a semen analysis and may consider other health or lifestyle factors that could affect fertility.

Fertility testing for secondary infertility

The specialists at Child Fertility approach every case with care and attention to the details of your reproductive health.

A structured assessment helps build a clearer picture of what may be influencing your fertility. This may include:

• Hormone testing and ovulation assessment
• Ultrasound evaluation of the uterus and ovaries
• Assessment of the fallopian tubes
• Semen analysis for the male partner

These investigations are guided by clinical evidence and tailored to your individual circumstances, for patients across Saudi Arabia. 

Can secondary infertility be treated?

Yes. In many cases, secondary infertility can be treated successfully once the underlying cause is identified.

Based on your results, our team will discuss supportive options and treatment plans that align with your fertility goals. These may include:

• Medications – to help induce ovulation for women who aren’t ovulating regularly.
• Intrauterine insemination (IUI) – In selected cases, IUI may be considered, where prepared sperm is placed directly into the uterus to support fertilisation.
• Surgical interventions – to address uterine complications (such as fibroids, polyps, or scar tissue) or male infertility issues like testicular varicocele
• In Vitro Fertilisation (IVF) – IVF may be discussed where other approaches are less effective or where there are additional factors, such as tubal issues or reduced ovarian reserve. IVF allows eggs to be fertilised in the laboratory, with resulting embryos transferred to the uterus. It also provides an opportunity to observe embryo development more closely. In certain situations, for example, where there are repeated miscarriages or specific genetic considerations, preimplantation genetic testing (PGT) may be discussed.
• Lifestyle and timing guidance – small adjustments in habits, diet, and timing of intercourse may improve the chances of natural conception

Chances of pregnancy with secondary infertility

The chances of pregnancy depend on several factors, including age, how long you have been trying, and any underlying fertility issues identified during assessment.

Some couples conceive naturally after a period of time, while others may benefit from medical support to improve their chances.

A personalised evaluation is the most reliable way to understand your individual likelihood of conception.

When should you see a fertility specialist?

You may wish to seek advice if you have been trying to conceive for 12 months (or 6 months if over 35) without success, or earlier if you have concerns about your reproductive health.

It is also helpful to seek guidance sooner if you have a history of miscarriage, irregular cycles, pelvic conditions, or previous fertility treatment.

Early assessment can help identify any contributing factors and guide the most appropriate next steps.

Take the next step

Experiencing difficulty conceiving again can feel unexpected, particularly when your first pregnancy came more easily. But fertility is not fixed, it evolves over time, and support is available.

If you’re experiencing difficulty conceiving again, our Oxford-trained specialists are here to provide personalised evaluation and support for both partners.