Having kids starts with understanding your options, whether that means conceiving naturally, using fertility treatments, adopting, or pursuing surrogacy. Each path has its own timeline, cost, and set of practical steps. Here’s what you need to know about all of them.
Natural Conception: Timing and Frequency
If you’re trying to conceive through intercourse, timing matters more than almost anything else. The fertile window is the six-day stretch ending on the day of ovulation. That’s when pregnancy is possible, and the closer to ovulation you have sex, the higher the odds.
The best approach is intercourse every one to two days during that window. Daily sex doesn’t lower your chances, despite the persistent myth that “saving up” sperm helps. In fact, couples who had sex only once during the fertile window had the lowest success rates. There’s no need to overthink frequency. What matters most is consistency during those key days.
Tracking ovulation can help you identify the window. Over-the-counter ovulation predictor kits detect a hormone surge that typically happens 24 to 36 hours before you ovulate. Tracking basal body temperature and cervical mucus changes are lower-cost alternatives, though slightly less precise. Many people combine methods for a clearer picture.
Preparing Your Body Before Conception
A few changes before you start trying can meaningfully improve your chances and protect a future pregnancy. Folic acid is the most important supplement to start early: 400 micrograms daily for most women, which reduces the risk of neural tube defects in the baby’s brain and spine. If you’ve had a previous pregnancy affected by a neural tube defect or take seizure medications, the recommended dose jumps to 4 milligrams daily.
Body weight plays a role on both sides. A BMI that’s significantly above or below the normal range is associated with both infertility and pregnancy complications. You don’t need to hit a perfect number, but moving toward a healthier weight before trying can make a real difference. Caffeine under 200 milligrams a day (roughly one 12-ounce cup of coffee) doesn’t appear to increase miscarriage or preterm birth risk, so you don’t need to quit entirely. Alcohol, tobacco, and recreational drugs should be stopped as early as possible.
For men, a few specific factors affect sperm quality. Tight underwear and frequent hot tub use both raise scrotal temperature, which lowers sperm count and motility. Obesity has a similar effect through fat accumulation around the groin, which also increases DNA damage in sperm. Switching to looser-fitting underwear, avoiding prolonged heat exposure, and maintaining a healthy weight are straightforward changes that can improve semen quality over the course of about three months (the time it takes to produce a new batch of sperm).
How Age Affects Fertility
Age is the single biggest factor in natural fertility, particularly for women. Fertility begins a gradual decline in the early 30s and accelerates after 35. By age 40, the chance of conceiving in any given menstrual cycle drops below 5%. That means fewer than 5 out of 100 women at that age will conceive in a given month of trying.
This decline reflects both fewer eggs remaining and a higher proportion of eggs with chromosomal abnormalities, which increases miscarriage risk as well. Male fertility also declines with age, though more gradually and with wider individual variation.
Because of this timeline, most guidelines recommend seeking a fertility evaluation if you’re under 35 and haven’t conceived after 12 months of regular, well-timed intercourse. If you’re 35 or older, that timeline shortens to six months. These aren’t hard cutoffs, but they reflect the reality that earlier evaluation gives you more options.
Fertility Treatments
IUI (Intrauterine Insemination)
IUI is often the first medical intervention. A doctor places prepared sperm directly into the uterus around the time of ovulation, bypassing some of the distance sperm normally need to travel. It’s less invasive and less expensive than IVF, but success rates are modest. Without fertility medications, the live birth rate per cycle is around 3.5%. With hormone stimulation, that roughly doubles to about 7% per cycle. Most people try three to six cycles before moving on.
IUI is a reasonable starting point for couples with unexplained infertility, mild male factor issues, or situations where a sperm donor is being used. It typically costs a few hundred to a few thousand dollars per cycle depending on whether medications are involved.
IVF (In Vitro Fertilization)
IVF involves stimulating the ovaries with hormones to produce multiple eggs, retrieving those eggs surgically, fertilizing them in a lab, and transferring an embryo to the uterus. It’s the most effective fertility treatment available, but also the most expensive and physically demanding.
Success rates depend heavily on age. Using the patient’s own eggs, the live birth rate per egg retrieval in 2023 was:
- Under 35: 53.2%
- 35 to 37: 39.9%
- 38 to 40: 26.2%
- 41 to 42: 13.2%
- Over 42: 4.1%
A single IVF cycle in the United States typically costs $20,000 to $25,000 or more when you include medications, monitoring, lab work, and embryo transfer. The base clinic fee runs $12,000 to $18,000, medications add $1,500 to $7,000, and optional services like genetic testing of embryos ($3,000 to $6,000) or specialized sperm injection ($1,200 to $3,000) push the total higher. Many people need more than one cycle. Some states mandate insurance coverage for fertility treatments, which can dramatically reduce out-of-pocket costs.
Adoption
Adoption is a path to parenthood that doesn’t depend on biology at all. The two main domestic routes are private adoption and foster care adoption, and they differ significantly in cost, timeline, and process.
Private domestic adoption typically costs $20,000 to $45,000. This covers home study fees, agency fees, legal expenses, and sometimes birth-parent living expenses during pregnancy. Wait times average around 12 months through larger agencies, though smaller agencies often take 18 to 24 months. You’ll go through background checks, home inspections, and interviews as part of the home study process, which evaluates whether your home is a safe and stable environment for a child.
Foster care adoption is dramatically less expensive, usually under $3,000, and many states provide monthly subsidies of roughly $400 to $500 per child to help with ongoing costs. The children available through foster care are typically older, and many have experienced trauma or instability. The process involves foster parent training and certification. In some cases, you may foster a child first with the goal of adoption if reunification with the birth family isn’t possible, which introduces uncertainty about the outcome.
International adoption is a third option, though it has become more limited and expensive over the past decade as many countries have tightened their programs. Costs vary widely by country but often exceed $30,000.
Surrogacy
Gestational surrogacy involves another person carrying a pregnancy using an embryo created through IVF, meaning the surrogate has no genetic connection to the child. This option is used by people who can’t carry a pregnancy themselves, including same-sex male couples, women with uterine conditions, and those for whom pregnancy poses serious health risks.
The total cost of gestational surrogacy in the United States exceeds $100,000. The surrogate’s compensation alone typically runs $25,000 to $45,000, with additional expenses covering IVF, legal contracts, agency fees, medical care, travel, and psychological screening. It’s the most expensive path to parenthood by a wide margin.
Legal requirements vary state by state. California has long been one of the most surrogacy-friendly states, while New York only legalized gestational surrogacy in 2021. Michigan repealed its law criminalizing surrogacy as recently as April 2024. Before entering a surrogacy arrangement, both parties need independent legal representation and a detailed contract covering parental rights, compensation, medical decisions, and what happens in unexpected circumstances. In states without clear surrogacy laws, establishing legal parentage can require additional court proceedings after birth.
Choosing Your Path
The right path depends on your biology, your budget, your timeline, and your personal preferences. For most people, the starting point is trying naturally with good timing and preconception health habits. If that doesn’t work within a reasonable window, a fertility evaluation can identify whether there’s a specific issue that treatment can address, or whether the best next step is IUI, IVF, or a non-biological route like adoption or surrogacy.
Cost is often the deciding factor. Natural conception costs nothing beyond prenatal vitamins. IUI runs a few thousand per cycle. IVF runs $20,000 or more per cycle. Surrogacy can top $100,000. Foster care adoption, on the other end of the spectrum, costs almost nothing and comes with ongoing financial support. Each path also carries different emotional demands and timelines, so it’s worth thinking through what feels sustainable for you before committing to one direction.