TTC Guide
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Medical Insights & News

Expert knowledge on fertility, preconception care, and life planning shared by Dr. Takuma Sato.

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To You Who Has Started Thinking About "When to Stop" Fertility Treatment — The Decision-Making Process for Treatment Cessation

The fertility journey can be long, and deciding when to stop treatment is rarely easy. This article explores concrete steps and emotional support for making this challenging decision.

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Timed Intercourse Pressure Making Sex a Chore? Tips for Couples to Overcome It

Is timed intercourse making your sex life feel like a burden during your TTC journey? Feeling pressured is a valid emotion. A fertility specialist offers tips for couples to navigate intimacy while trying to conceive.

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Navigating "When Are You Having Kids?": Expert Strategies for Family Pressure and Setting Boundaries

Are innocent questions like "When are you having kids?" from in-laws or relatives causing significant stress during your TTC journey? A fertility specialist explains how to alleviate this psychological burden and set healthy boundaries.

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Balancing Fertility Treatment and Work: The Stress of Hiding Appointments vs. The Benefits of Telling Your Employer

For women undergoing fertility treatment, balancing work and appointments can be a significant challenge. We discuss the stress of hiding your journey and the potential benefits of disclosing it to your employer, from the perspective of an OB/GYN specialist.

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When a Friend's Pregnancy Announcement Hurts — A Psychological Approach to Creating Guilt-Free Distance

It's natural to feel complex emotions when a friend announces their pregnancy. This article validates those feelings and provides psychological strategies from a fertility specialist's perspective to protect your well-being while maintaining healthy relationships.

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Bridging the Gap: Communication Strategies for Partners in TTC with Different Fertility Perspectives

The 'temperature gap' between partners during the fertility journey is a common challenge. From an OB/GYN's perspective, this article explores practical communication strategies to bridge this gap and foster deeper understanding and empathy, validating that your feelings are valid.

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The Scientific Rebuttal to 'Just Relax and You'll Get Pregnant': Unpacking Infertility and Stress

The phrase 'Just relax and you'll get pregnant' is often a hurtful piece of advice for those struggling with infertility. This article provides a scientific, calm perspective on the relationship between infertility and stress.

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Implantation Bleeding vs. Period — How to Tell the Difference and the "Implantation Bleeding is a Myth" Debate

Many people wonder, "Is this implantation bleeding?" Differentiating between implantation bleeding and a period can be challenging. This article, from an OB-GYN specialist’s perspective, explains the mechanism of implantation bleeding, how to distinguish it from a period, and addresses the debate surrounding whether it’s a "myth," incorporating the latest insights. Your feelings are valid.

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How Accurate Are Fertility App Ovulation Predictions? Why Dates Differ Between Apps

Fertility apps offer convenience for ovulation tracking, but many wonder about their accuracy and why predictions differ. This article, written by a fertility specialist, explains how these apps work, reasons for discrepancies, and tips to improve prediction accuracy.

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Low Cervical Mucus Around Ovulation? Impact on Conception and Potential Solutions Explained by a Fertility Specialist

Experiencing dry cervical mucus during your fertile window? Learn about its impact on conception and potential strategies from a fertility specialist. Your feelings are valid, and accurate information is here to support your TTC journey.

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Short Luteal Phase (Under 10 Days) — Does Luteal Phase Defect Affect Fertility? What Are the Solutions?

Is a short luteal phase (luteal phase defect) impacting your chances of conception? A fertility specialist explains its diagnosis and potential solutions like progesterone supplementation.

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Navigating Irregular Cycles (32-60 Days): Timing Intercourse for Conception

If your menstrual cycles are long and irregular, ranging from 32 to 60 days, it's natural to feel concerned about conception. Learn how to predict ovulation and effectively time intercourse with expert guidance.

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AMH and AFC Discordance: Which to Trust When Numbers Don't Match? Why it Happens.

AMH and AFC are crucial indicators of ovarian reserve, but sometimes their values don't align. Why does this discordance occur? This article explains the reasons and how to make a more informed decision.

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Ovulation Predictor Kit (OPK) Never Shows Two Lines? 5 Reasons Beyond PCOS

Using an Ovulation Predictor Kit (OPK) and consistently not seeing a positive result can be distressing. While Polycystic Ovary Syndrome (PCOS) is a common concern, there are several other reasons why your OPK might not be turning positive. This article, from the perspective of an OB/GYN specialist, explains the main causes and potential strategies.

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IUI Timing: Before or After Ovulation? Latest Meta-Analysis Unpacked

When is the optimal timing for Intrauterine Insemination (IUI) – before or after ovulation? We delve into the latest meta-analysis to provide an expert perspective on its effectiveness.

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IVF Over 40: Is One Egg Retrieval Too Soon to Give Up? Understanding Cumulative Success Rates

For women over 40 undergoing IVF, it can be disheartening if the first egg retrieval doesn't yield the desired outcome. Understanding the concept of cumulative success rates can offer renewed hope. A reproductive specialist explains how multiple cycles may increase your chances of success and the importance of emotional well-being.

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When Embryos Don't Reach Blastocyst Stage: Is Early Embryo Transfer a Valid Option?

If your embryos don't develop to the blastocyst stage, early embryo transfer can be a valid alternative. A specialist explains why, its pros and cons, and when to consider this option.

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Single vs. Double Embryo Transfer: Understanding Success Rates and Twin Risks with Data

Deciding between single and double embryo transfer is a crucial choice that balances pregnancy success rates against the risks of twin pregnancies. This article provides data-driven insights into the pros and cons of each, offering guidance to help you make an informed decision tailored to your personal circumstances. TW: Pregnancy, Infertility Treatment

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Low Egg Retrieval: Should You Change Stimulation Protocols for the Next IVF Cycle? Understanding the Rationale

If you've experienced a lower-than-expected egg retrieval, you're not alone in wondering if a change in stimulation protocol is necessary for your next cycle. This article delves into the definition of a poor responder and the scientific basis for protocol modifications from a specialist's perspective.

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5 Signs It's Time to Switch Fertility Clinics — A Calm Approach When You're Unhappy With Your Current Clinic

Navigating fertility treatment can be challenging. Learn 5 clear signs it might be time to consider a new clinic and how to make an informed decision.

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When to Transition from IUI to IVF? 3 vs 6 Cycles, Data-Driven Turning Points, and Honoring Your Feelings

Navigating the decision of how many IUI cycles to undergo before considering IVF is challenging. This article explores the latest data and emphasizes validating your emotions throughout the fertility journey.

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Diagnosed with Missed Miscarriage: When and How to Seek a Second Opinion

A diagnosis of missed miscarriage can be emotionally overwhelming. Learn when to consider a second opinion and what criteria to use.

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Coping with Anxiety Between Ultrasounds in Early Pregnancy: Expert Strategies

Many women experience anxiety in early pregnancy. An OB/GYN specialist explains practical coping strategies to ease worries between ultrasound appointments.

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Gestational Sac Seen, No Heartbeat — How Long to Wait? Criteria to Navigate Uncertainty

Seeing a gestational sac but no heartbeat in early pregnancy can be incredibly worrying. This article, written by an OB/GYN specialist, explains the appropriate timing for heartbeat confirmation and medical criteria to help you wait with less anxiety.

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Miscarriage is Not Your Fault — The Truth About Exercise, Stress, and Coffee

Miscarriage is never "your fault." We debunk common myths about exercise, stress, and coffee causing miscarriage, based on the latest scientific evidence.

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Fertility & Reproductive Medicine

Low HCG Levels Don't Always Mean Miscarriage — What You Need to Know

A low HCG level in early pregnancy can be alarming, but a single measurement alone cannot confirm a miscarriage. A fertility specialist explains why and how to interpret HCG values correctly.

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When Can You Try for Pregnancy After Miscarriage? 'Waiting 3 Months' Debunked by Latest Evidence

The common advice to 'wait 3 months' after a miscarriage before trying to conceive again is being challenged by new evidence. We provide information based on the latest research to help you navigate your TTC journey.

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To You Who Experienced a Chemical Pregnancy — Impact on Future Pregnancies and Real Data

For those who've experienced a chemical pregnancy. A message from a specialist addressing the impact on future pregnancies, recurrence rates, and validating your feelings.

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Morning Sickness Disappeared? Is It a Miscarriage Sign? Research Suggests Symptom Fluctuations Are Normal

It's common for expectant mothers to worry about miscarriage if their morning sickness symptoms suddenly lessen or disappear. However, research indicates that the intensity and frequency of morning sickness vary greatly among individuals and often fluctuate.

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First Trimester Bleeding — A Sign of Miscarriage or a Common Symptom? Key Differentiating Points

First trimester bleeding is a common experience for many pregnant individuals, often causing significant anxiety. In this article, a fertility specialist explains how to differentiate whether first trimester bleeding is a sign of miscarriage or a less concerning physiological phenomenon.

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Ultra-Processed Foods and Fertility: The "Invisible Threat" on Your Plate and Its Impact on Hormonal Balance and Reproductive Function

Many foods deeply embedded in modern diets are ultra-processed. A fertility specialist discusses recent findings suggesting their potential impact on hormonal balance and reproductive function for women trying to conceive.

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Fertility and Sexual Positions: Myth or Science? The Truth About Timing and Intercourse for Conception

Is the idea that certain sexual positions increase pregnancy chances a myth? We explore the scientific truths about intercourse timing and positions in fertility planning.

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Women's Health

Postpartum Recovery: Modern Guidelines on Exercise and Mental Health

Postpartum exercise and pelvic floor muscle training (PFMT) are crucial for preventing and improving urinary incontinence and mental health issues. This article outlines evidence-based postpartum care, guided by the latest Canadian recommendations.

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Fertility Detox: Is There Scientific Evidence? An Expert OB/GYN Explains

Can "fertility detox" diets and supplements truly create a body more conducive to pregnancy? An OB/GYN expert analyzes the scientific basis behind these claims.

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Fertility Treatment

Natural vs. Programmed FET: What the Latest Lancet Data Reveals About Your Best Option

A major 2024 Lancet study shows natural and programmed frozen embryo transfer cycles yield similar live birth rates — but natural FET may reduce maternal complication risks. Here's what it means for your treatment plan.

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"Invisible Enemy" Environmental Hormones Threatening Your Fertility? The Threat of Endocrine Disrupting Chemicals in Plastic Products and Daily Necessities, and Detox Strategies You Can Start Today.

A fertility specialist explains how "environmental hormones" in daily life might affect your fertility journey. This article objectively introduces the threat of endocrine disrupting chemicals and actionable steps you can take today.

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"The Sunshine Vitamin" Key to Fertility? Vitamin D's Impact on Ovarian Function, Endometrial Receptivity, and Male Infertility. Risks of Deficiency and Effective Supplementation Strategies.

Vitamin D is gaining attention in fertility. We explore its potential impact on ovarian function, endometrial receptivity, and male infertility, based on the latest evidence. We also cover the risks of deficiency and effective supplementation.

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Gluten-Free for Fertility? The Latest Evidence on Infertility and Dietary Therapy. Risks of Nutrient Deficiency from Unnecessary Restrictions

"Gluten-free" and "dairy-free" diets are often discussed in the context of trying to conceive (TTC). But do these restrictions truly help with fertility? This article explains the scientific evidence behind infertility and dietary therapies from the perspective of an OB/GYN specialist.

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Is Acupuncture a "Fertility Booster"? The Latest Evidence on Acupuncture in Infertility Treatment, and the Limits of the Placebo Effect

Dr. Takuma Sato, a fertility specialist, explores the latest evidence on acupuncture for infertility, its effectiveness, and the crucial role of the placebo effect.

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Visualizing the '24 Hours of an Embryo': How Time-Lapse Incubation May Revolutionize Embryo Selection, Improve Implantation Rates, and Reduce Miscarriage Rates

Time-lapse embryo incubation technology may enable more objective embryo selection by continuously observing embryo development. A specialist explains the expectations for improved implantation rates and reduced miscarriage rates, along with its current status and challenges.

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Is Male Hormone a "Double-Edged Sword"? Testosterone Replacement Therapy, Spermatogenesis Inhibition, and New Approaches for Low Testosterone Infertility

As an OB/GYN specialist, I'll explain the challenges men with low testosterone face in fertility, how testosterone replacement therapy impacts sperm production, and current treatment strategies.

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ACOG 2026 Endometriosis Guidelines: The Era of 'Treat First, Diagnose Later' for Better Fertility Outcomes

The newly released ACOG 2026 guidelines are revolutionizing endometriosis diagnosis and treatment, moving towards earlier intervention without mandatory surgery. Discover how this paradigm shift can safeguard your fertility and quality of life.

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2026 Tokyo Fertility Subsidy Updates: A Path Towards Significantly Reduced Costs

Starting April 2026, Tokyo’s fertility treatment subsidy program will be significantly expanded. A new subsidy of up to ¥150,000 will cover out-of-pocket expenses for insurance-covered treatments, with a budget increase to ¥5.6 billion, aiming to ease financial burdens for many.

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Does the Implantation Window Truly Exist? Latest Evidence on Endometrial Receptivity Array (ERA) and the Potential for Personalized Medicine

The Endometrial Receptivity Array (ERA) test is gaining attention for optimizing embryo transfer timing. However, its effectiveness remains a subject of debate. This article provides objective information based on the latest evidence.

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Does Diet Change Sperm Quality? Ultra-Processed Foods and Endocrine Disruptors (BPA/Phthalates)

The role of diet in male fertility is gaining attention. We explore how ultra-processed foods and endocrine disruptors may impact sperm quality based on current research.

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What is Preconception Care? Health Investment for a Brighter Future, Starting Today

Do you have vague anxieties about future pregnancy, childbirth, or career plans? Preconception care is a health investment you can make now, even if you're not planning pregnancy yet, to expand your future options. A specialist explains concrete steps you can take starting today.

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Prioritizing Mental Health in the Journey to Motherhood

Address the critical importance of mental well-being before, during, and after pregnancy. Understand common mental health challenges like anxiety and depression, and learn about available support systems and resources.

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Can AI Predict IVF Success? Latest Research and Its Implications

Explore the cutting-edge AI research aiming to improve IVF success rates. We delve into the potential of AI to predict embryo quality and pregnancy outcomes, based on robust evidence.

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Managing Chronic Health Conditions Before Conception: A Vital Step Towards a Confident Future

Learn how to effectively manage pre-existing conditions like diabetes, hypertension, or thyroid disorders to minimize risks during pregnancy. This includes consulting with specialists and adjusting medication plans, empowering you for a healthy conception.

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Safe and Effective Exercise During Pregnancy: For Your Future and Your Baby

Get actionable advice on maintaining an active lifestyle during pregnancy. Learn about safe exercise routines, intensity levels, and modifications to keep you strong and healthy, benefiting both you and your baby.

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AMH and the Egg Freezing Reality: Why It's Not an 'Insurance Policy' for Your Future

Considering egg freezing? While AMH indicates egg quantity, it doesn't guarantee quality or future success. A fertility specialist explains the hard data on AMH, age, and the realities of egg freezing.

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The Importance of Folic Acid and Intake Timing: A Crucial Nutrient in Preconception Care

Are you anxious about future pregnancy? A specialist doctor explains the importance of "folic acid," a key element in preconception care, and its optimal intake timing.

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Scheduling Your Essential Preconception Check-up: A Guide for Your Future Self and Baby

Discover the importance of a comprehensive medical check-up before attempting conception. This includes reviewing your health history, vaccinations, genetic screening, and discussing any existing medical conditions to ensure a healthy start.

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