When to Start Fertility Supplements Before Trying to Conceive

Clara, 31, sat across the table from her husband Luca, coffee in hand, and said the words they had both been thinking for months: “I think we’re ready.”

Ready to start a family. Ready to try.

But neither of them knew where to begin. They had heard about fertility supplements before trying to conceive, but had no idea when to start, what to take, or why any of it mattered.

If that sounds like you, you are not alone. And you are in exactly the right place.

At Plusbaby, recognised as a Swiss Vegan Fertility Leader, our supplements are formulated by Swiss doctors to help couples like Clara and Luca prepare their bodies before the journey begins. Because preparation is not just smart, it is one of the most loving things you can do for your future baby.

This guide will walk you through everything, simply and clearly. No complicated science. No overwhelm. Just honest, helpful answers.

Key takeaways

1. Start at least 3 months before you begin trying to conceive, for both partners
2. Egg quality takes around 90 days to develop, so timing your supplements early makes a real difference
3. Sperm takes about 74 days to mature, men need to prepare too, not just women
4. Folic acid should begin before conception, not after a positive pregnancy test
5. Clean, high-bioavailability supplements absorb better and support the body more effectively

Why preparation matters before conception

Clara assumed that once she stopped birth control, her body would simply be “ready.” Many people do.

But here is something most people do not realise: your reproductive health today is shaped by what your body has been doing for the past three months. Eggs and sperm are not made overnight. They develop slowly, and they are directly affected by the nutrients, or lack of nutrients, in your body during that time.

This is why preconception supplements timing matters so much. Starting your pre pregnancy supplement routine early gives your body the building blocks it needs before conception even happens.

Deficiencies in key nutrients like folic acid, vitamin D3, zinc, and iron are more common than most people think, and they can quietly affect your chances of conceiving without you even knowing.

The recommended timeframe: how long before trying to conceive should you take supplements?

The most common question couples ask is: how long before trying to conceive should I take supplements?

The answer, supported by medical guidance and research, is at least 3 months, ideally 4 to 6 months before you start actively trying.

Here is a simple visual to understand why:

Think of it this way: if you plant a seed, the soil needs to be nourished before planting, not after. Your body is the soil.

Not sure how to structure your first month? Read our One-Month Fertility Boost Plan using Myo-Inositol, Maca, and Fertility Vitamins to get started step by step.

When should women start fertility supplements?

Back to Clara. She booked an appointment with her gynaecologist, who told her something she had not expected: “Start your supplements now, even before you stop contraception.”

For women, knowing when to start prenatal vitamins and fertility support is crucial. Here is what the science and doctors recommend:

Folic acid is the most urgent, it needs to be in your system before conception, because neural tube development begins in the very first weeks of pregnancy, often before a woman even knows she is pregnant.

Beyond folic acid, key nutrients for women include:

1. Myo-Inositol: supports ovulation and hormonal balance, especially for women with PCOS
2. Vitamin D3: linked to egg quality and cycle regularity
3. Iron: supports oxygen transport and energy during the preconception phase
4. Omega-3 DHA: supports hormonal health and prepares the uterine lining

If you have irregular cycles, PCOS, or endometriosis, your doctor may recommend starting your fertility vitamins before conception even earlier, sometimes 4 to 6 months in advance.

Plusbaby’s +fertiwomen Inositol combines all these key nutrients in one clean, vegan formula, designed specifically for women preparing to conceive.

Myo-Inositol in particular has strong research behind it — especially for women with PCOS. Learn more in our guide on Top 5 Myo-Inositol Benefits for Fertility & Wellness.

When should men start fertility supplements?

Luca, Clara’s husband, had one reaction when she suggested he take supplements too: “Do I really need to?”

Yes. Absolutely yes.

Male fertility is 50% of the equation, and yet it is the half most couples overlook entirely.

Here is the key fact: sperm takes approximately 74 days to develop. That means the sperm that will be present when you start trying to conceive is being formed right now. What a man eats, how he sleeps, and what nutrients he takes today will directly affect his sperm quality in two to three months.

The best time to start fertility supplements for men is the same as for women: at least 3 months before you begin trying.

Key nutrients that support male fertility:

• Zinc: essential for testosterone production and sperm formation
• L-Carnitine: supports sperm motility (movement)
• CoQ10: an antioxidant that protects sperm from oxidative damage
• L-Arginine: supports sperm count and reproductive blood flow
• Selenium: inked to healthy sperm structure

Plusbaby’s +fertimen combines 11 of these key nutrients in one daily supplement, making it simple for men to support their fertility without complication.

Want a week-by-week breakdown of how to prepare together? Our 3-Month Preconception Plan for Couples in Switzerland walks you through exactly what to do.

What if you have already started trying?

Maybe you are reading this and thinking: “We already started trying two months ago. Did we miss the window?”

You did not. It is never too late to start.

Your TTC supplement timeline does not have to be perfect to be helpful. Starting your supplements to take before pregnancy, even mid-journey, still supports your body, improves nutrient levels over time, and creates a better environment for conception.

The key is consistency. Take them daily. Give your body time. And be kind to yourself throughout the process.

To understand the full picture of what affects both partners’ fertility, read our detailed guide on Male and Female Fertility Factors Couples Must Understand Before Trying to Conceive.

Signs you might need supplements sooner

Some people benefit from starting their planning pregnancy supplements earlier than the standard 3-month window. Watch for these signs:

• Irregular or missing periods
• Diagnosed PCOS, endometriosis, or thyroid issues
• A history of nutritional deficiency (low iron, low vitamin D)
• High stress levels or poor sleep patterns
• A diet low in vegetables, healthy fats, or protein

If any of these apply to you, speak to your doctor about starting your when to take fertility vitamins journey 4 to 6 months before you plan to try.

Choosing the right fertility supplement: what to look for

Not all supplements are equal. Here is a simple comparison to help you choose wisely:

Plusbaby supplements tick every box, formulated by Swiss doctors, GMP-certified, ISO-approved, and completely vegan and additive-free.

Simple tips to get the most from your supplements

1. Take them at the same time every day: consistency helps your body absorb nutrients steadily
2. Take with food: improves absorption and reduces any stomach sensitivity
3. Stay hydrated: nutrients absorb better when you are well-hydrated
4. Pair with a fertility-friendly diet: leafy greens, healthy fats, whole grains, and lean protein all support your supplement routine
5. Both partners take theirs: think of it as a shared daily habit, not a solo task

Real stories from real couples

“With PCOS, I was told natural conception might be difficult. I started inositol-based fertility supplements four months before trying, and my cycles became more regular almost immediately. I am now 14 weeks pregnant and so grateful I started early.”
Sophie, 35 — Lausanne (PCOS)

“I honestly thought the supplements were just my wife’s thing. Then I read about the 74-day sperm cycle and realised I was the missing piece. I started +fertimen. Three months later , everything changed for us.”
Marc, 38 — Basel

Scientific references & studies

The recommendations in this blog are grounded in real medical research:

1. Czeizel & Dudás (1992) — New England Journal of Medicine: Folic acid supplementation before conception significantly reduces the risk of neural tube defects. PubMed link

Conclusion

Clara and Luca did not wait for the “perfect moment.” They simply decided to prepare — together, intentionally, and with the right support.

Knowing when to start fertility supplements is not about pressure or perfection. It is about giving your body, and your future baby, the very best foundation possible.

Whether you are just starting to think about it or already on your TTC journey, your pre pregnancy supplement routine can start today. Three months of consistent, clean supplementation can meaningfully change the environment in which new life begins.

As a Swiss Vegan Fertility Leader, Plusbaby is here to support every step of your journey, with doctor-formulated, science-backed supplements designed for real couples with real dreams.

FAQ

Question: When is the best time to start taking fertility supplements?

Answer: At least 3 months before you begin trying to conceive, ideally 4 to 6 months for best results.

Question: Can both partners take supplements at the same time?

Answer: Yes, and they absolutely should. Both egg and sperm quality are influenced by nutrition, and preparing together improves your overall chances.

Question: Are fertility supplements safe before conception?

Answer: Yes, when they are doctor-formulated and free from artificial additives. Always choose certified, medically reviewed supplements.

Question: How long does it take to see results from fertility supplements?

Answer: Most nutrients take 8 to 12 weeks to reach optimal levels in the body. Consistency over 3 months is key.

Question: Do I still need supplements if I eat a healthy diet?

Answer: Even with a balanced diet, many people have gaps in key fertility nutrients like folic acid, vitamin D3, and inositol. Supplements help fill those gaps reliably.

Important Note: The information in this blog is for general educational purposes only. Every body is different. Before starting any supplement, especially if you have an existing health condition, are on medication, or have concerns about your fertility, please consult your doctor or a qualified healthcare professional.