The Pregnancy Doctor: Pregnancy Halves Every Year After 32! If You Want 2+ Children, You Need To Know This! If You Experience This Pain, Go See A Doctor!
Dr. Natalie Crawford, a fertility doctor, explains the rising infertility rates, emphasizing proactive reproductive health. She details the science of eggs and sperm, lifestyle impacts, and interventions like egg/embryo freezing, while addressing stigmas and the emotional toll of fertility struggles.
Deep Dive Analysis
16 Topic Outline
Introduction to Fertility and Dr. Natalie's Mission
Rising Infertility Rates and Societal Factors
Male Fertility: Sperm Production and Decline
Environmental Factors Impacting Male Fertility
Female Fertility: The Egg Vault Analogy and Egg Decline
Understanding Ovarian Reserve and AMH Testing
Lifestyle Choices for Optimizing Fertility
The Menstrual Cycle and Ovulation Explained
Optimizing Intercourse for Conception
Infertility Diagnosis and Seeking Medical Help
Polycystic Ovarian Syndrome (PCOS): Causes and Impact
Endometriosis: Understanding the Inflammatory Condition
IVF and Embryo Banking: Modern Fertility Interventions
Misconceptions and Stigma in Fertility Treatment
The Role of Birth Control and Understanding Your Body
Final Advice for Those Struggling with Fertility
10 Key Concepts
Ovarian Reserve
This refers to the number of eggs remaining in a woman's 'vault' (ovaries), which naturally declines over time. It can be assessed through an AMH blood test and an ultrasound to see how many eggs are available in a given month.
Follicle Stimulating Hormone (FSH)
FSH is a hormone released from the brain that acts as 'food' for eggs, stimulating one egg (within a follicle) to grow each month in women. In men, it controls sperm production.
Luteinizing Hormone (LH)
Once an egg is mature and estrogen levels are high enough, the brain releases LH, which causes the follicle to rupture and release the egg (ovulation). LH then stimulates the remaining follicle to become a corpus luteum.
Corpus Luteum
After ovulation, the ruptured follicle transforms into a cyst called the corpus luteum, which produces progesterone. This progesterone is crucial for opening and closing the implantation window in the uterus.
Implantation Window
This is a specific, time-sensitive period when the uterus is receptive to an embryo implanting. It is regulated by the hormone progesterone, which is produced by the corpus luteum after ovulation.
Hypothalamic Dysfunction
This occurs when the hypothalamus (the brain's 'airport control station' for hormones) misinterprets signals from the body, such as extreme stress or calorie restriction, and consequently shuts down the production of reproductive hormones like FSH and LH, leading to irregular or absent periods.
Polycystic Ovarian Syndrome (PCOS)
PCOS is a condition often linked to being born with more eggs in the ovarian vault, leading to a miscommunication between the ovary and the brain. This results in diluted FSH signals, irregular or absent ovulation, and increased testosterone production, which can cause symptoms like acne, facial hair, and insulin resistance.
Endometriosis
An inflammatory autoimmune condition where cells similar to the uterine lining (endometrium) grow outside the uterus. These implants respond to estrogen, causing chronic inflammation and pain, and can damage eggs or obstruct fallopian tubes, contributing significantly to infertility.
In Vitro Fertilization (IVF)
IVF is a fertility treatment where eggs are retrieved from a woman's ovaries, fertilized with sperm in a laboratory dish ('in vitro'), and the resulting embryos are grown and often genetically tested before being transferred into the uterus.
Embryo Banking
This process involves undergoing IVF to create and freeze multiple embryos for future use. It is a strategy to preserve fertility and increase the chances of having multiple children, especially for those who delay childbearing or have conditions like PCOS or endometriosis.
12 Questions Answered
A woman is born with 1-2 million eggs, has about half a million by puberty, starts reproductive years with 300,000, and less than a thousand by the time she enters menopause.
Ejaculating somewhere between every day to every three to four days is optimal. Waiting longer than seven days can lead to an accumulation of dead sperm, which can impair the function of healthy sperm.
Modern phones emit less radiation than older models, and recent studies show less impact on sperm count from phone usage. However, heat from laptops directly on the lap or daily hot baths can increase testicular temperature, negatively affecting sperm and testosterone production.
Yes, TRT acts as a form of male birth control. Taking external testosterone signals the brain to stop producing its own, which also halts sperm production, leading to no sperm in the ejaculate (azospermia), and this can sometimes be irreversible.
No, a lower egg count does not directly impact the monthly chance of getting pregnant, as only one egg is typically ovulated regardless of the total reserve. However, it signifies less overall opportunity for conception and fewer eggs available for fertility treatments like IVF.
Optimizing fertility involves avoiding toxic behaviors (cigarettes, marijuana, excessive alcohol), limiting environmental toxins (from plastics, Teflon, thermal paper receipts), decreasing chronic inflammation (through adequate sleep, stress reduction, and a healthy diet), and engaging in regular, moderate exercise.
A normal menstrual cycle is regular and predictable, typically lasting between 24 to 35 days, allowing a woman to anticipate her period within a couple of days of certainty.
The fertile window is the five days leading up to ovulation and the day of ovulation itself, as sperm can survive in the female reproductive tract for up to five days, and an egg is viable for about 24 hours after release.
If under 30, try for a year; if over 30, try for six months. However, if there are irregular periods or inability to complete intercourse, medical consultation should be sought immediately, regardless of the duration of trying.
Yes, uterine contractions during female orgasm are known to help propel sperm towards the fallopian tubes faster, potentially aiding in conception.
The birth control pill is not inherently unhealthy and can be medically beneficial for conditions like endometriosis or severe PMS. However, using it to mask underlying issues like irregular periods without diagnosis can delay understanding one's reproductive health and cause frustration later.
Studies suggest that for the average person, 32 or 33 is the optimal time to intervene and consider freezing eggs, based on the decline in egg count and quality relative to typical conception timelines.
19 Actionable Insights
1. Prioritize Sleep for Fertility
Aim for 7.5 to 8 hours of sleep nightly, as it’s crucial for cellular repair and hormone production, directly impacting reproductive hormone systems and overall fertility. This is cited as the simplest yet most impactful lifestyle change for improving reproduction.
2. Adopt a Fertility-Friendly Diet
Prioritize a diet high in fruits and vegetables to lower inflammation. Limit processed foods, refined sugar, processed meats, and refined carbohydrates, and opt for whole-fat dairy over skimmed versions, while moderating red meat and fish consumption.
3. Reduce Chronic Stress Daily
Dedicate 20 minutes daily to stress-reducing activities without screens, such as walking, therapy, mindfulness, or journaling. Chronic stress and cortisol production can cloud the brain’s judgment and impair reproductive hormone production.
4. Engage in Moderate Daily Exercise
Exercise daily (e.g., 60 minutes or less) to improve hormone function, combat insulin resistance, manage weight, and reduce stress. Avoid over-exercising to the point of menstrual cycle disruption, as this can signal to the brain that the body cannot support a pregnancy.
5. Eliminate Toxic Behaviors
Eliminate smoking cigarettes, marijuana, and cocaine, as these significantly decrease egg count, egg quality, sperm count, sperm motility, and increase miscarriage rates. Vaping appears similarly harmful.
6. Limit Environmental Toxin Exposure
Reduce exposure to toxins by avoiding cooking in plastic, microwaving/dishwashing plastic, using Teflon pans, and touching thermal paper receipts. Transfer takeout food from its containers to glass or a plate, especially when heated, to prevent chemical leaching.
7. Monitor Female Ovarian Reserve
Women should consider checking their ovarian reserve (AMH blood test and ultrasound) even if not actively trying to conceive or experiencing infertility. This data empowers informed decisions about family planning, such as freezing eggs or trying to conceive sooner.
8. Avoid TRT When Conceiving
Men should avoid Testosterone Replacement Therapy (TRT) if they plan to conceive, as it acts as male birth control by signaling the brain to stop producing natural testosterone and sperm. This can potentially lead to irreversible absence of sperm (azoospermia).
9. Optimize Male Sperm Health
Men should aim for ejaculation every 1 to 4 days (every day to every three to four days) to optimize sperm quality. Waiting too long (over 7 days) increases dead sperm, which can hinder the function of healthy sperm.
10. Prevent Testicular Overheating
Men should be mindful of activities that significantly increase scrotal temperature, such as daily sauna or hot tub use, prolonged laptop use on the lap, or intense cycling. This can negatively impact sperm and testosterone production.
11. Address Irregular or Absent Periods
If not on contraception, irregular or absent periods are not normal and warrant a doctor’s visit. They can indicate underlying issues detrimental to long-term health, including increased risk of metabolic disease and endometrial cancer.
12. Seek Early PCOS/Endometriosis Diagnosis
If diagnosed with PCOS or endometriosis, seek fertility evaluation without delay, rather than waiting the traditional 12 months. These conditions significantly increase infertility risk, so proactive testing and a game plan are crucial before attempting conception.
13. Consider Egg/Embryo Freezing
For women not ready to have children by age 32-33 but who desire a family, consult a fertility doctor to evaluate ovarian reserve and discuss egg or embryo freezing. This proactive step can preserve fertility, especially for those wanting multiple children or facing conditions that accelerate egg loss.
14. Understand IVF and Genetic Testing
IVF involves fertilizing eggs outside the body, and genetic testing can identify chromosomally normal embryos, increasing success rates and preventing severe genetic conditions. Transfer one genetically normal embryo at a time for optimal outcomes.
15. Maintain Regular Sexual Activity
Do not ‘save up’ sperm by having less sex; regular intercourse (every day or every other day) ensures a healthy supply of sperm. Sperm can live in the female reproductive tract for up to five days, optimizing the chances of fertilization.
16. Disregard Post-Sex Fertility Myths
After intercourse, there’s no need to prop hips up, keep feet in the air, or avoid urinating, as sperm reach the fallopian tubes within minutes. Urinating can help prevent urinary tract infections, and female orgasm can aid sperm transport.
17. Evaluate Birth Control Holistically
Birth control pills are not inherently unhealthy and can treat conditions like endometriosis or PMDD, but using them to mask irregular periods without diagnosing the underlying cause can delay addressing fertility issues. Consider stopping contraception before actively trying to conceive to understand your body’s natural cycle.
18. Seek Second Opinions in Treatment
If undergoing fertility treatment without success, do not hesitate to seek a second opinion. A fresh perspective can offer new strategies or insights, ensuring you are comfortable with your treatment choices and maximizing your limited reproductive window.
19. Prioritize Open Communication, Support
Discuss family planning goals with your partner early on, and if struggling with fertility, share your journey with trusted friends and family. This helps receive support and alleviates the burden of isolation, as people often want to help but can’t if they don’t know.
7 Key Quotes
Every time somebody said, 'I wish I'd known this earlier. I can't believe I wasn't taught this. Why isn't this the stuff that we're taught?' Because I might've made different decisions earlier in my life.
Dr. Natalie Crawford
You can't control everything, but you should be able to control the factors you can.
Dr. Natalie Crawford
Taking testosterone yourself is telling your brain that there is testosterone present... So the hormones from your brain stop being sent out and no longer tell your testicle to make any more testosterone or any more sperm. So TRT use makes men azuspermic, meaning having no sperm in the ejaculate.
Dr. Natalie Crawford
It's not information to scare people, but it is information that nobody talks about.
Dr. Natalie Crawford
Sleep is probably the number one thing that people don't do that does impact their reproductive hormone system.
Dr. Natalie Crawford
The traditional mentality to infertility is so reactive. You have to prove to me you have a problem before I go and test it.
Dr. Natalie Crawford
The world has a way of sometimes making sense that are so hard when you're in the midst of the pain to understand. And I tell my patients that same thing over and over, that in the journey, it doesn't make sense. But that's not your job in the journey to understand the whys. It's to keep going and not give up.
Dr. Natalie Crawford
3 Protocols
Optimizing Male Fertility
Dr. Natalie Crawford- Avoid toxic behaviors such as smoking cigarettes, marijuana, and cocaine.
- Limit exposure to environmental toxins by avoiding cooking in plastic, microwaving plastic, using Teflon pans, touching thermal paper receipts, and eating takeout food directly from its containers (transfer to glass or a plate).
- Decrease chronic inflammation by prioritizing 7.5 to 8 hours of sleep per night, actively managing stress, and consuming a healthy diet.
- Engage in regular, moderate exercise (60 minutes or less daily) to improve hormone function and combat insulin resistance.
- Maintain optimal testicular temperature by avoiding daily saunas, hot tubs, placing laptops directly on the lap, and prolonged cycling sessions (which generate heat in the scrotum area).
- Ejaculate regularly, ideally every day to every three to four days, to ensure healthy sperm turnover and prevent accumulation of dead sperm.
Optimizing Female Fertility
Dr. Natalie Crawford- Avoid toxic behaviors such as smoking cigarettes, marijuana, cocaine, and moderate to high alcohol intake (more than four drinks a week).
- Limit exposure to environmental toxins by avoiding cooking in plastic, microwaving plastic, using Teflon pans, touching thermal paper receipts, and eating takeout food directly from its containers (transfer to glass or a plate).
- Decrease chronic inflammation by prioritizing 7.5 to 8 hours of sleep per night, actively managing stress, and consuming a healthy diet.
- Engage in regular, moderate exercise (60 minutes or less daily) to improve hormone function and combat insulin resistance.
- Consume a fertility-friendly diet that is high in fruits and vegetables (for fiber and antioxidants) and limits processed foods, refined sugar, and processed meats.
- If consuming dairy, opt for whole-fat versions in moderation, as skimmed or low-fat dairy may be more processed and less beneficial.
- Consider incorporating 'Meatless Mondays' and limiting red meat consumption to about one serving per day, while fish is a good alternative (limited to three times per week due to mercury risk).
Family Planning for Individuals with PCOS or Endometriosis
Dr. Natalie Crawford- Have an honest and proactive conversation about desired family size and timeline with your partner.
- Get your ovarian reserve checked (via AMH blood test and ultrasound) to understand your current egg count, as these conditions can accelerate egg loss.
- Before actively trying to conceive, ensure your fallopian tubes are open and assess your partner's sperm quality.
- If you desire a larger family or are delaying conception, consider early intervention strategies like egg freezing or embryo banking to preserve future options.
- Do not adhere to the traditional waiting period of 6-12 months of trying before seeking medical advice; consult a doctor immediately due to the known association of these conditions with infertility.