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After tying the knot with your loved one, you and your partner may wish to conceive naturally. However, when natural conception becomes challenging, fertility treatments such as in vitro fertilisation (IVF) can provide an alternative. The IVF procedure involves hormonal medication that affects your body, deciding between IVF and natural conception may not always be easy.
Knowing how the two approaches differ, what each involves, and which offers a better success rate can help you choose which option fits best for your fertility journey.
What is natural conception?
Natural conception is the process where pregnancy occurs through regular sexual intercourse without medical intervention. It begins with ovulation, when the ovary releases a mature egg into the fallopian tube.
During intercourse, sperm are ejaculated into the vagina and travel through the cervix (the lower part of the womb) into the uterus (womb) and then into the fallopian tubes (a pair of hollow, muscular ducts between your ovaries and womb).
Fertilisation normally happens in the fallopian tube, where a single sperm penetrates the egg to form a fertilised egg, known as a zygote. After fertilisation, the embryo undergoes several cell divisions while travelling down the tube into the womb. Around 5 to 7 days after fertilisation, it implants into the uterine lining (endometrium).
Successful natural conception depends on multiple factors, such as regular ovulation, healthy sperm quality, open fallopian tubes, and whether your uterine lining is ready to receive an embryo. If any of these factors are disrupted, natural pregnancy may not occur even in otherwise healthy individuals.
What is IVF?
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In vitro fertilisation (IVF) is a fertility treatment that is done in a laboratory, which involves bypassing some or all of the natural processes involved in conception. Instead of fertilisation occurring inside the fallopian tube, eggs are retrieved directly from the ovaries after hormonal stimulation. These eggs are then combined with sperm in a laboratory environment, either through conventional insemination or intracytoplasmic sperm injection (ICSI).
Once fertilisation occurs, embryos are cultured for several days until they reach a suitable stage (often blastocyst stage). A selected embryo is then transferred into the uterus, where it will naturally implant if the lining of your womb is ready to support it. The IVF process allows your specialists to control and optimise many variables in reproduction, making it effective for conditions where natural conception is difficult or impossible.
Key differences between IVF and natural conception
To help you decide whether to undergo IVF or pursue natural conception for your pregnancy journey, here are some key differences between the two methods.
| IVF | Natural conception | |
|---|---|---|
How fertilisation occurs | In a laboratory, where conditions such as temperature, nutrients, and sperm exposure are optimised by embryologists. | In the fallopian tube, under natural conditions. |
Medical involvement |
| None beyond general health maintenance. |
Time to pregnancy | About 2 to 6 weeks per cycle, though multiple cycles may be needed depending on your age, embryo quality, and other underlying fertility issues. | Unpredictable. It depends on ovulation and intercourse timing. May take several months, even for healthy couples. |
Success rate | Often around 24% in younger women, but it might depend on diagnosis and embryo type. The rate is also declining with age. IVF improves efficiency by selecting embryos and optimising fertilisation conditions, but it cannot fully overcome age-related egg quality decline. | A study in Singapore shows around 42% of women attempting to conceive naturally achieved a clinically confirmed pregnancy within one year of follow-up. |
Cost in Singapore | Around SGD 20,000 to 25,000 per cycle in private hospitals, though package prices may exclude medication and add-on procedures. | Usually none, unless fertility testing and treatment are needed. |
To help you decide on the most suitable conception approach, request a consultation with our specialist at Thomson Fertility Singapore to receive personalised recommendations and guidance for your fertility journey.
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Who may benefit from IVF?
IVF is beneficial for individuals with structural or functional barriers to natural conception. This includes:
Blocked or damaged fallopian tubes, which prevent the sperm and egg from meeting.
Severe male factor infertility issues, related to sperm count, morphology (size and shape), and motility (how efficiently the sperm moves).
Ovulation disorders that do not respond to medication.
Endometriosis, which distorts pelvic anatomy.
Unexplained infertility.
Fertility preservation (such as before chemotherapy), for genetic testing of embryos to avoid inherited diseases, and in cases requiring donor eggs or sperm.
Women who seek fertility preservation before undergoing medical treatments such as chemotherapy.
Couples who need to screen their embryos for inherited genetic diseases.
Couples who require the use of donor eggs or sperm to conceive.
What are the advantages of natural conception?
For couples without fertility issues, natural conception avoids the stress, cost and medical complexity associated with IVF, helping to eliminate any side effects. It also allows the body to naturally regulate hormonal cycles, ovulation, fertilisation, and the early stages of embryo development, eliminating the need for additional medical intervention.
Risks and considerations
While both IVF and natural conceptions have their own advantages, these processes also come with potential risks that you need to consider.
Health risks
Natural conception carries the general risks associated with pregnancy, such as:
Pregnancy complications, depending on maternal health
Meanwhile, IVF carries additional procedural risks, such as:
Ovarian hyperstimulation syndrome (OHSS), a medical condition when the ovaries become enlarged and overreact from fertility medications
Discomfort from egg retrieval procedure
Rare complications, such as bleeding or infection
Emotional and financial factors
Natural conception may involve emotional stress related to uncertainty or difficulty conceiving over time. On the other hand, IVF involves more intense emotional experiences due to structured cycles, frequent pregnancy monitoring, and the anticipation of embryo transfer outcomes.
Financially, IVF is significantly more expensive and may require multiple cycles, while natural conception has minimal direct medical cost.
What affects IVF and natural conception costs in Singapore?
Cost is often a factor when deciding between IVF and continuing to try to conceive naturally. Couples may end up paying different amounts, depending on what their diagnosis requires at each stage.
What affects IVF costs?
IVF is priced as a series of medical procedures rather than a single fee; the total moves with how much of each stage you need, including the following:
Medication dosage
Laboratory add-ons
Embryo freezing and storage
Fresh or frozen transfer, where frozen transfers cost less, as stimulation and egg retrieval are not repeated
Number of cycles
Pre-treatment investigations
These procedures add up, but there is a form of support available in Singapore to reduce what you pay directly. Although there is no government funding for IVF treatment cycles at private fertility centres, you can use your MediSave to help cover the cost of treatment.
You can claim MediSave up to:
SGD 6,000 for the first cycle
SGD 5,000 for the second cycle
SGD 4,000 for the third and subsequent cycles
SGD 15,000 per patient for the lifetime withdrawal limit
As withdrawal limits are reviewed periodically, they may have changed since this article was written in August 2026. For the full list of eligibility conditions, visit the MOH Marriage and Parenthood Schemes page.
What affects natural conception costs?
Natural conception typically involves little to no medical costs unless fertility evaluation or treatment is needed. Some couples may incur expenses for ovulation tracking kits, consultations, blood tests, or ultrasound monitoring if they are under medical guidance for subfertility. Compared with IVF, the overall cost is significantly lower unless medical issues are identified.
How to decide the right approach
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Choosing between natural conception and IVF depends on multiple factors, such as:
Age
Duration of infertility
Reproductive health
Personal priorities
Younger couples with no known fertility issues are usually advised to try natural conception first. IVF is recommended when there is a clear medical barrier or after a period of unsuccessful attempts, typically 6 to 12 months depending on age.
When making this decision, consider emotional readiness, financial capability, and willingness to undergo medical procedures. In many cases, fertility specialists use diagnostic testing to guide whether natural conception is realistic or whether IVF offers a better chance of success.
If you have been trying natural conception for a while without success, or you are unsure whether IVF is the right next step, request a consultation with our fertility specialists at Thomson Fertility Singapore. They can assess your fertility history and diagnostic results to determine whether natural conception remains realistic or whether IVF offers a better chance.
FAQ
Is IVF more successful than natural conception?
In vitro fertilisation (IVF) is generally more successful per cycle than natural conception in couples who already have infertility because it gets around problems such as blocked fallopian tubes, severe male factor infertility, or ovulation problems.
In natural conception, the chance of pregnancy each month is limited by timing and biological factors, even in healthy couples. IVF increases efficiency by controlling fertilisation and selecting embryos, but it does not guarantee success, and success still depends heavily on age and egg quality.
How long should I try naturally before IVF?
The recommended duration of trying naturally depends mainly on age. In general, couples under 35 are advised to try for about 12 months before seeking fertility treatment. For those aged 35 or older, evaluation is usually recommended after 6 months.
Does IVF increase chances with age?
IVF does not reverse the biological effects of age, especially egg quality decline. However, it can improve the chance of pregnancy per attempt compared with natural conception in older patients by controlling fertilisation and selecting embryos for transfer.
The most important limitation lies with the quality and number of eggs, which decrease with age. Therefore, IVF improves efficiency but does not fully overcome age-related fertility decline.
Are IVF babies as healthy as naturally conceived babies?
Yes, babies conceived through IVF are generally as healthy as those conceived naturally. However, there is a slightly higher risk of certain complications such as low birth weight or preterm birth, but much of this risk is related to underlying parental factors like age, infertility causes, or multiple pregnancies rather than IVF itself.
Can I switch from natural conception to IVF?
Yes, many couples transition from natural conception attempts to IVF when pregnancy does not occur or when a fertility issue is identified. This decision is usually based on test results, duration of infertility, and personal preference. IVF is not a last resort in all cases and may be recommended earlier if there is a clear condition such as blocked fallopian tubes or severe sperm abnormalities.
Is IVF more stressful than natural conception?
IVF can be more emotionally and physically demanding than natural conception because it involves injections, frequent monitoring, procedures, and high emotional expectations during each cycle. The structured nature of IVF can create periods of intense anticipation and anxiety.
Natural conception may involve less medical stress but can still cause emotional strain due to uncertainty and repeated attempts. Stress levels vary greatly depending on individual coping style and support systems.
What factors affect success in both methods?
Success in natural conception and IVF depends on several biological factors. In both cases, maternal age is the most important factor because it affects egg quality.
For natural conception, there are a few factors. These include how often your ovaries release an egg (ovulation regularity), the quality of the sperm, and tubal patency – the condition of a woman's fallopian tubes being open or free from blockage.
For IVF, embryo quality, how well the ovaries respond to stimulation, and whether the uterine lining is ready to receive an embryo are all important. Lifestyle factors such as smoking, body weight, and chronic medical conditions can affect how well both methods work.
The information provided is intended for general guidance only and should not be considered medical advice. For personalised recommendations and tailored advice based on your unique conditions,request a consultationwith Thomson Medical today.
References
Huang, L., Loy, S. L., Chen, W.-Q., Eriksson, J. G., Chong, Y. S., Huang, Z., Chan, J. K. Y., Wong, T. Y., Kramer, M., Zhang, C., & Li, L.-J. (2021). Retinal microvasculature and time to pregnancy in a multi-ethnic pre-conception cohort in Singapore. Human Reproduction, 36(11), 2935–2947. https://doi.org/10.1093/humrep/deab197
Ministry of Health. (2024, January 10). Statistics of Assisted Reproductive Technology Success Rate for Public and Private Centres. moh.gov.sg. https://www.moh.gov.sg/newsroom/statistics-of-assisted-reproductive-technology-success-rate-for-public-and-private-centres/
For more information, contact us:
Thomson Fertility Centre
- Paragon: 6252 7766
- Novena: 6399 3758, 8811 0358 (WA)