Do You Need to Hurry to Have a Baby? A Deep Dive into Age, Fertility, and When to See a Doctor
- Siam Fertility Clinic
- Sep 4
- 3 min read

Family Planning in the Modern Era: When the Dream of Having a Child Conflicts with Time
In today’s world, where lifestyles and careers have shifted, many people choose to establish stability in life before planning a family. As a result, the decision to “have children” often happens at a later age, which commonly brings about concerns such as: “Can I still have children at this age?” or “How much longer do I have to wait?”
In reality, age is one of the most significant biological factors directly affecting fertility. Understanding the relationship between age and the chances of conception can help you plan your family more effectively and seek timely support from specialists.
The Window of Opportunity: Understanding Fertility at Different Ages
A woman’s fertility changes significantly with age, as both the quantity and quality of eggs naturally decline over time.
Ages 20–29: Peak Fertility
This is the time when the body is most prepared for pregnancy. Eggs are abundant and of high quality, giving the highest chance of natural conception per cycle. Risks of complications and chromosomal abnormalities are also lower than in other age groups.
Ages 30–34: Still Good, But Starting to Decline
Although fertility remains relatively high, it begins to gradually decline after age 30. It may take a little longer to conceive compared to the 20s, but overall, this is still considered a good age to start a family.
Ages 35–39: A Critical Turning Point
After 35, fertility declines more rapidly. Both egg quality and quantity decrease noticeably, lowering the chances of natural conception. At the same time, the risk of chromosomal abnormalities (such as Down syndrome) and pregnancy complications increases significantly.
Age 40 and Beyond: Greater Challenges
At 40 and older, the chances of natural conception decrease further, while risks rise considerably. Pursuing parenthood at this stage requires careful planning and close medical guidance.
Male Age Matters Too
Although male fertility does not decline as sharply as in women, age still impacts sperm quality. After 40, sperm count and motility may decrease, and the risk of passing on certain genetic abnormalities to offspring increases slightly.
Warning Signs: When Does “Wanting a Baby” Mean Seeing a Doctor?
Knowing when to consult a doctor is crucial to avoid losing valuable time. General guidelines are:
Under 35: Consult a doctor if you’ve been trying to conceive regularly for 1 year without success.
Ages 35–39: Seek medical advice if you’ve been trying for 6 months without success.
Age 40 and above: Consult a doctor as soon as you decide to have a baby, for fertility assessment and treatment planning.
Other risk factors: If you or your partner have conditions that may affect fertility (e.g., irregular periods, prior pelvic surgery, chronic illness), seek medical consultation early.
Frequently Asked Questions (FAQ)
Q: I’m 38—can I still conceive naturally?
A: Yes, it’s still possible. However, the chances are lower compared to younger ages, and it may take longer. Importantly, don’t wait too long—if you’ve been trying for 6 months, consult a fertility specialist for evaluation and proper guidance.
Q: How does preconception health screening help?
A: It evaluates the readiness of both partners by identifying hidden risk factors, such as ovarian reserve, sperm quality, or certain genetic conditions. This allows doctors to prepare personalized care and treatment plans in advance.
Q: What if I’m not ready to have children yet?
A: If you plan to have children later but are concerned about age, egg freezing is a promising option. It allows you to preserve healthy eggs now for use in the future.
Smart Family Planning: Let Siam Fertility Clinic Be Your Partner
Age is something we cannot change, but good planning and timely decisions can significantly improve your chances of having a baby. Understanding your fertility and seeking professional support are the first—and most important—steps.
At Siam Fertility Clinic, we are ready to be your partner and advisor at every stage of family planning. Regardless of your age or concerns, our team of doctors and specialists provide accurate diagnosis and honest guidance, helping you achieve your dream of parenthood safely and effectively.
If you are planning to have children and would like consultation on IUI, IVF, or ICSI or IVF in Thailand, schedule an appointment with our fertility specialists to explore the best options for you.
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