Modern Fertility Challenges: Late Marriages, Live-in Relationships, and Surrogacy

The way Indians are approaching marriage and parenthood is shifting in ways our parents’ generation could barely have imagined. Career-driven twenty-somethings are pushing weddings into their thirties, urban couples are choosing to live together without tying the knot, and clinics offering IVF and surrogacy are becoming as familiar as routine health check-ups. These are not isolated lifestyle choices but interconnected demographic trends that are quietly reshaping fertility patterns and forcing us to rethink what “starting a family” really means in the twenty-first century.

Why marriages are happening later than ever 🔗

For decades, the typical Indian woman married in her late teens or very early twenties. That picture has changed dramatically. Recent demographic analysis of three decades of data shows India has witnessed a steady upward trend in the predicted mean age at marriage between 1992 and 2021, although the rate of progress remains modest. Today, women in metropolitan cities routinely marry in their late twenties, and men often in their early thirties.

Several forces are driving this delay. Higher education tops the list – a young woman pursuing a postgraduate degree or professional qualification simply cannot afford to marry at twenty. Economic ambition is another. The growth of the service economy, the IT sector, and corporate careers has given educated women financial independence and a stake in their own futures. Add to that a cultural shift away from purely family-arranged matches toward partnerships based on individual compatibility and shared goals, and you have a generation that wants to build a life before sharing one.

The biological cost of delay 🔗

The trouble is that human biology has not kept pace with our sociology. Female fertility is highest in the twenties and begins a measurable decline after thirty, accelerating sharply after thirty-five. Higher levels of education and late marriage are associated with a higher incidence of primary infertility, and secondary infertility in India rose from 19.5% in 1992-93 to 28.6% in 2015-16. Hormonal imbalances become more common with age, conditions like endometriosis and PCOS take a heavier toll, and ovarian reserve diminishes.

Men are not exempt. Sperm quality and count typically begin to drop around age forty, contributing to couples’ difficulties in conceiving even when the woman is younger. Lifestyle factors that come bundled with modern urban living – chronic stress, sedentary jobs, processed food, irregular sleep, and exposure to environmental toxins – compound the biological clock problem.

The demographic ripple effect 🔗

From a population studies perspective, delayed marriage acts as a powerful brake on fertility. Studies using Indian survey data show that women marrying later have shorter first birth intervals than those marrying young, but longer intervals for second and subsequent births, meaning their completed family size tends to be smaller. Empirical work using nationally representative Indian data finds that delayed marriage is associated with both delayed childbearing and lower completed fertility. This is one major reason India’s total fertility rate has fallen below the replacement level of 2.1 in most states.

Live-in relationships and the new geography of cohabitation 🔗

A few decades ago, two unmarried adults sharing a flat would have provoked a scandal in most Indian neighbourhoods. Today, in cities like Bengaluru, Mumbai, Pune, Delhi, and Hyderabad, it has become a quiet reality among educated young professionals. While reliable national statistics are scarce – the Census does not capture this category cleanly – the trend is unmistakable in urban housing markets, popular culture, and family courts.

Where the law stands 🔗

Indian law does not formally recognise live-in relationships as marriages, but the judiciary has built a substantial protective framework. The Supreme Court has held that live-in or marriage-like relationships are neither a crime nor a sin, although socially unacceptable to many. The landmark Indra Sarma v. V.K.V. Sarma (2013) judgment laid out a comprehensive definition and identified categories of live-in relationships, while D. Velusamy v. D. Patchaiammal (2010) brought certain long-term cohabiting women under the Protection of Women from Domestic Violence Act, 2005.

Equally important for population studies, the Supreme Court has accorded legitimacy and inheritance rights to children born from live-in relationships, holding in Tulsa v. Durghatiya (2008) that such children cannot be deemed illegitimate when parents have cohabited for a considerable period. This legal recognition reduces one of the historic disincentives to non-marital childbearing.

What this means for fertility behaviour 🔗

In countries like Sweden, France, and the United States, a large share of births now happens outside marriage, and cohabitation has become a long-term substitute for marriage rather than a prelude to it. India is nowhere near that pattern, but live-in arrangements are already nudging fertility behaviour in three subtle ways.

First, they often postpone formal marriage, which in turn postpones planned childbearing. A couple may cohabit for three or four years before marrying, by which point the woman is in her late twenties or early thirties. Second, live-in couples generally practise contraception more deliberately, because pregnancy outside marriage still carries social and legal complications in India. Third, the experience of cohabitation can reshape preferences – couples accustomed to dual incomes, urban mobility, and personal freedom often arrive at marriage with a clear preference for one child or none at all.

Surrogacy, IVF, and the assisted reproduction boom 🔗

When biology resists the timelines that modern life demands, technology steps in. Assisted Reproductive Technology has gone from being a rare last resort to a recognisable industry, with IVF clinics now operating in tier-two and even tier-three cities. A large portion of the estimated 27 million infertile Indian couples lack easy access to ART, with provision occurring overwhelmingly through the private sector.

From global baby factory to regulated industry 🔗

India’s tryst with assisted reproduction began famously in October 1978, when Kanupriya (Durga), the country’s first IVF baby, was born in Kolkata – just months after the world’s first IVF birth in the United Kingdom. Through the 2000s and 2010s, the absence of regulation, low costs, and skilled doctors turned India into a major destination for international surrogacy. Reproductive tourism reached a turnover of around 500 million US dollars and earned India the unflattering label of a “global baby factory”.

That growth came with disturbing reports of surrogate mothers being underpaid, poorly housed, exploited by middlemen, and stranded with custody complications. In response, Parliament eventually passed two landmark laws in December 2021: the Surrogacy (Regulation) Act, 2021 and the Assisted Reproductive Technology (Regulation) Act, 2021, both of which came into effect on January 25, 2022, regulating who can access these services, establishing a national registry for clinics, and creating national and state-level boards to oversee implementation.

What the new law allows and forbids 🔗

The Surrogacy Regulation Act prohibits commercial surrogacy entirely. Only altruistic surrogacy – where the surrogate receives medical expenses and insurance but no payment – is permitted. Eligibility is restricted to Indian married couples with proven medical infertility, with the intending wife aged between 23 and 50 and the husband between 26 and 55. Single women may access surrogacy only if they are widowed or divorced. Single men, unmarried couples, live-in partners, and LGBTQ+ individuals are excluded, a feature that has drawn sharp criticism from public health scholars and human rights groups.

The Act has visibly shifted the landscape. Foreign clients have largely disappeared, several clinics have closed, and the surrogacy sector is now considerably smaller and more tightly supervised. However, analysts note continuing gaps in surrogate protection and enforcement, and a partial shift toward informal and cross-border arrangements that may raise new risks for vulnerable women.

The IVF surge among ordinary couples 🔗

Far more numerous than surrogacy cases are ordinary IVF and intrauterine insemination cycles undertaken by Indian couples in their thirties and forties who simply cannot conceive naturally. The reasons map almost perfectly onto the trends discussed above – delayed marriage, age-related decline in egg and sperm quality, rising rates of PCOS and endometriosis, male-factor infertility tied to lifestyle, and increased awareness that treatment is available. The fact that fertility clinics now advertise on metro pillars and YouTube tells you how mainstream the conversation has become.

How these three trends connect 🔗

It is tempting to study late marriage, live-in relationships, and assisted reproduction as separate stories, but they are really chapters of the same book. Education and career aspirations push the age at marriage upward. Higher age at marriage opens space for live-in arrangements as a transitional or alternative form of partnership. Both delay childbearing, which in turn increases the demand for IVF and, in a smaller subset of cases, surrogacy. Meanwhile, the legal system is slowly catching up – extending rights to live-in partners and their children, while regulating fertility clinics and surrogacy contracts.

For population studies, the takeaway is striking. India has reached below-replacement fertility not primarily because the government persuaded people to have fewer children, but because the social conditions of marriage and childbearing themselves have transformed. The challenge for policymakers is no longer just family planning in the old sense. It is preparing a healthcare system, a legal framework, and a workplace culture that respond to a population marrying later, partnering more flexibly, and turning increasingly to medicine to become parents.

What do you think? Do you believe Indian society is genuinely ready to extend the same dignity and legal protection to children born from live-in relationships and surrogacy as it offers those born within traditional marriages? And as the age of first marriage continues to rise, should fertility awareness and reproductive health be taught as part of higher education curricula so that young adults can make informed choices about timing?

References

1. https://pmc.ncbi.nlm.nih.gov/articles/PMC9958403/
2. https://sociology.institute/sociology-in-india/changing-age-marriage-trends-india/
3. https://www.ferty9.com/blog/is-india-facing-an-infertility-crisis
4. https://www.un-ilibrary.org/content/journals/15644278/26/2/2
5. https://www.sciencedirect.com/science/article/abs/pii/S0304387817300123
6. https://www.drishtijudiciary.com/editorial/legal-status-of-live-in-relationships
7. https://www.legalkart.com/legal-blog/understanding-your-legal-rights-in-live-in-relationships-in-india
8. https://pmc.ncbi.nlm.nih.gov/articles/PMC10492714/
9. https://pmc.ncbi.nlm.nih.gov/articles/PMC9816354/
10. https://www.get-carrot.com/blog/what-to-know-about-indias-art-regulation-and-surrogacy-regulation-acts
11. https://en.wikipedia.org/wiki/Surrogacy_in_India