The single most important thing you can do when trying to get pregnant is have sex during your fertile window, which spans about six days each cycle. Beyond timing, a combination of lifestyle adjustments, nutritional prep, and knowing how to track your cycle can meaningfully improve your chances. Here’s what actually matters.
Know Your Fertile Window
Your fertile window is the five days before ovulation plus the day of ovulation itself. Sperm can survive inside the reproductive tract for up to five days, but an egg only lives about 12 to 24 hours after it’s released. That overlap creates a roughly six-day stretch each cycle when pregnancy is possible. For the best odds, have sex every day or every other day during that window.
If your cycle is roughly 28 days, ovulation typically happens around day 14, but cycles vary. A 32-day cycle might mean ovulation closer to day 18. Rather than guessing, tracking ovulation gives you a much clearer picture.
How to Track Ovulation
There are three main methods, and combining at least two of them gives the most reliable results.
Cervical mucus. As you approach ovulation, your body produces more cervical mucus that becomes clear, slippery, and stretchy, similar to raw egg whites. This usually appears one to two days before ovulation. This type of mucus actively helps sperm travel toward the egg, so when you notice it, that’s a strong signal you’re in your most fertile days.
Ovulation predictor kits (OPKs). These urine-based strips work like pregnancy tests but detect a different hormone. They pick up a hormonal surge that typically happens 12 to 36 hours before ovulation, giving you a short but useful heads-up. A positive result means it’s time to have sex that day and the next.
Basal body temperature (BBT). Your resting temperature dips slightly just before ovulation, then rises and stays elevated for the rest of your cycle. The catch is that this shift confirms ovulation has already happened rather than predicting it in advance. It’s most useful over several months to help you spot your personal pattern and anticipate future cycles. Mucus changes predict ovulation; temperature changes confirm it. Together, they cover both sides.
Start Folic Acid Before You Conceive
The CDC recommends that all women who could become pregnant take 400 micrograms of folic acid every day. This B vitamin helps prevent serious birth defects of the brain and spine called neural tube defects, and the critical window for protection is the earliest weeks of pregnancy, often before you even know you’re pregnant. Most prenatal vitamins contain the right amount, so starting one now is the simplest approach.
Get a Preconception Checkup
A visit with your doctor before you start trying can catch issues that are easier to manage ahead of time. Chronic conditions like diabetes, high blood pressure, and thyroid disease all affect pregnancy outcomes, and getting them well-controlled beforehand makes a real difference.
Your doctor will also review your immunization status. Vaccines for measles-mumps-rubella, chickenpox, whooping cough, and hepatitis B are all recommended for women of reproductive age, and some of these can’t be given during pregnancy. If you’re missing any, getting them beforehand protects both you and the baby. STI screening and genetic carrier screening are also typically offered at this visit.
If you take any medications, including over-the-counter ones, bring them up. Some drugs aren’t safe during pregnancy, and switching to an alternative takes planning.
Lifestyle Changes That Matter
Quit smoking if you haven’t already. Tobacco damages both eggs and sperm and is one of the clearest, most modifiable risk factors for reduced fertility. Alcohol should also be cut back significantly or eliminated. There’s no known safe amount of alcohol during pregnancy, and since you won’t know the exact day you conceive, stopping while you’re actively trying is the safest approach.
Keep caffeine under 200 milligrams a day, which is roughly two standard cups of coffee. Higher intake has been associated with fertility difficulties and pregnancy complications.
Maintaining a healthy weight matters for both partners. A higher BMI is linked with lower sperm count and reduced sperm movement in men. In women, being significantly over or under a healthy weight can disrupt ovulation. Even moderate changes in weight can restore regular cycles for some women.
Stress management deserves attention too. Chronic stress can suppress the hormones needed for both ovulation and healthy sperm production, and it can lower your desire for sex, which is a practical problem when you’re trying to conceive regularly.
What Your Partner Can Do
Fertility is a two-person project. About a third of couples struggling to conceive have a male factor involved, so your partner’s habits matter just as much. The basics: don’t smoke, limit alcohol, stay at a healthy weight, and manage stress. Certain medications and toxic chemical exposures at work can also harm sperm, so those are worth discussing with a doctor.
Heat is a specific concern for sperm production. Frequent hot tub use, laptops placed directly on the lap, and prolonged sitting can raise scrotal temperature enough to temporarily reduce sperm quality. These are easy fixes that don’t require medical intervention.
Choose the Right Lubricant
If you use lubricant during sex, most standard products can slow sperm movement, including saliva. Household oils like coconut oil aren’t a good substitute either. Look for lubricants specifically labeled “fertility-friendly” or “sperm-friendly,” which must be evaluated by the FDA before they can carry that label. The best options are free of fragrances and parabens and are formulated to mimic the consistency of natural cervical mucus without interfering with sperm.
Reduce Exposure to Hormone-Disrupting Chemicals
Certain everyday chemicals can interfere with reproductive hormones. BPA, found in some plastics and can linings, has been shown to compromise embryo implantation. Phthalates, common in flexible plastics, vinyl, and fragranced personal care products, also disrupt hormonal signaling. Research from Denmark found that women under 40 who worked in the plastics industry were more likely to need fertility assistance than women of the same age who weren’t exposed.
You don’t need to overhaul your entire life, but practical steps help: avoid microwaving food in plastic containers, choose fragrance-free personal care products when possible, and opt for glass or stainless steel for food storage. Even low-level lead exposure changes reproductive hormones in premenopausal women, so if you live in an older home, testing your water is worth considering.
How Long It Typically Takes
Most healthy couples under 35 conceive within a year of trying. That timeline can feel long, but it’s considered normal. If you’re under 35 and haven’t conceived after 12 months of regular, unprotected sex, a fertility evaluation is recommended. If you’re over 35, that timeline shortens to 6 months. And if you’re over 40, it’s worth having a conversation with your doctor before you start trying or right away, since egg quality and quantity decline more steeply in this age range and earlier intervention can make a significant difference.
In the meantime, tracking your cycles, taking folic acid, and making the lifestyle shifts above put you in the strongest possible position. Most of these changes take little effort but give your body the best conditions for conception.