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!
The myth-busts, hot takes, explainers, and tools worth keeping.
⚡Myth Buster· 3
⚡Myth Buster26:30
Why Testicular Heat and TRT Can Suppress Sperm Production
Crawford distinguishes phone radiation from heat, saying the phone-location study she discusses did not show a location effect while sustained scrotal heating can impair sperm and testosterone production. She also warns that external testosterone can suppress the brain signals that drive both, sometimes producing no sperm in the ejaculate.
The modern-phone study Crawford cites did not find a location effect
Daily hot tubs, prolonged heat, and intense cycling are exposures she reviews
External testosterone tells the brain that testosterone is already present
Crawford says prolonged TRT can sometimes have lasting effects on sperm return
“taking testosterone yourself is telling your brain that there is testosterone present”
#trt#testicular heat#sperm#male fertility
⚡Myth Buster2:06:30
Conception Myths: Saved Sperm, Raised Legs, and Sex Position
Crawford rejects the idea that couples should abstain to save sperm for ovulation and says everyday or every-other-day sex is acceptable when trying to conceive. She also says sperm reach the cervix quickly, so raised legs, pillows, tampons, and avoiding urination are unnecessary, and no intercourse position improves conception odds as long as ejaculation occurs.
Long abstinence is not needed to improve conception chances
Sperm can reach the cervix within minutes
Urinating after sex does not wash sperm out and may reduce urinary-tract-infection risk
No sex position is presented as superior for conception
Crawford says female orgasm may help uterine contractions move sperm faster but does not present it as required
“there's no need to prop your hips up on a pillow for 30 minutes or put your feet in the air”
#conception myths#intercourse#sperm#ovulation
⚡Myth Buster2:10:30
The Birth-Control Pill Does Not Cause Infertility
Crawford says the pill itself does not cause infertility or deplete the ovarian reserve, although individuals can experience different metabolic, vitamin, or subjective effects. Her larger concern is diagnostic masking: prescribing the pill for irregular cycles without identifying the cause can postpone that diagnosis until someone later tries to conceive.
The pill suppresses ovulation but does not stop monthly egg loss from the reserve
It can be medically useful for endometriosis, PCOS-related uterine protection, pain, or PMDD
Stable hormones can be beneficial for some people and unpleasant for others
An earlier cycle problem may still be present after stopping contraception
Crawford recommends understanding natural cycle regularity before trying to conceive
“the birth control pill itself does not cause infertility”
Why Infertility Is More Visible—and Reported More Often
Crawford separates greater awareness from a possible underlying rise in infertility. She says social media, earlier diagnosis, and wider access to reproductive technology reveal cases that once stayed private, while later family starts, poorer metabolic health, and environmental exposures may also contribute.
Greater openness and access can increase recorded diagnoses
Crawford cites a rise from one in eight to one in five US women trying to conceive
She says age alone does not explain the reported increase
Later childbearing and population health changes may act together
“we do have people more aware about their fertility getting diagnosed earlier and easier”
#infertility#public health#fertility trends
✶Explainer19:00
The 90-Day Sperm Production Cycle
Crawford contrasts continuously produced sperm with the finite egg supply. She says sperm take about 72 days to develop across the testicle and another 18 days to move through the ejaculatory system, so current sperm reflect prior months rather than today's behavior alone.
Men continually produce new sperm from germ cells
Crawford describes a roughly 90-day development and transit period
Repeated ejaculation draws from sperm already produced and stored
A later semen result may reflect changes made months earlier
“takes 72 days for a sperm to grow across the testicle and then 18 days to get out the ejaculatory system”
#sperm#male fertility#reproduction
✶Explainer25:00
How Smoking and Marijuana May Harm Reproductive Health
Crawford says cigarette smoking is associated with lower egg count and quality, poorer sperm measures, and increased miscarriage risk. She also says marijuana use may damage sperm DNA and cites an association with miscarriage even when only the male partner uses it; she characterizes vaping evidence as preliminary and incomplete.
Crawford links cigarettes to adverse egg and sperm measures
She attributes a marijuana-related miscarriage risk to sperm DNA damage
The partner using marijuana may matter even without second-hand exposure
She says vaping evidence is less developed and should not be overstated
“we don't know as much about vaping but it appears in all the preliminary studies to be similarly very bad”
#smoking#marijuana#vaping#fertility
✶Explainer1:06:00
When Exercise Supports—or Disrupts—Ovulation
Crawford explains that exercise can support metabolic health, weight management, and stress coping, but extreme training or inadequate fueling can suppress FSH and LH signals from the brain. She presents inactivity and overexercise as opposite extremes, with sustainable movement as the useful middle for most people.
Energy intake and expenditure help signal whether the body can support pregnancy
Extreme training can suppress ovulation and menstrual periods
Excess fat tissue can alter estrogen signaling in both women and men
Moderate movement may support insulin sensitivity and stress regulation
“both overe exercising and not exercising are the extremes that are not going to be helpful for you”
#exercise#ovulation#hormones#energy balance
✶Explainer1:25:00
PCOS as a Hormone-Signaling and Ovulation Problem
Crawford uses the vault analogy to explain one PCOS pathway: more small follicles share the available FSH signal, no follicle grows predictably, and the ovary increases androgen production. She also notes that PCOS is a syndrome with different possible origins and that not everyone with PCOS is overweight.
Unreliable follicle growth can produce irregular or absent ovulation
Higher androgens may contribute to acne, hair growth, insulin resistance, and abdominal weight gain
Diagnosis requires two of three criteria: many follicles, androgen signs, or irregular periods
Treatment may include ovulation-induction or hormone and metabolic medications
Healthy behavior does not guarantee that PCOS will resolve without intervention
“not all women with PC are overweight”
#pcos#androgens#insulin resistance#ovulation
✶Explainer1:34:00
Why Untreated Absent Periods Can Carry Different Risks
Crawford contrasts two pathways to absent periods. In PCOS, ongoing estrogen without ovulation and progesterone can stimulate the uterine lining, while hypothalamic suppression can leave estrogen too low, with potential long-term effects on bones and other systems.
The same symptom can arise from very different hormone states
PCOS-related anovulation may leave the uterine lining without a progesterone-triggered shed
Low-estrogen amenorrhea may affect bone health and quality of life
The underlying cause should be diagnosed rather than treating absent bleeding as harmless
“if you're not taking any hormones and you're not having a period it is extremely bad for your health”
#amenorrhea#pcos#estrogen#endometrial health
✶Explainer1:37:00
Endometriosis: Inflammation, Pain, and Fertility
Crawford describes endometriosis as an inflammatory condition in which tissue outside the uterus reacts abnormally and responds to estrogen. She says it can cause severe period pain, deep pain during intercourse, a hostile environment for eggs and embryos, scarring, and blocked fallopian tubes, although not everyone has pain.
Severe period pain that disrupts normal life is not presented as normal
Deep positional pain during intercourse can be a sign
IVF may allow fertilization outside the inflammatory environment
“very painful periods is the Hallmark of the disease although importantly not everybody who has Indo has pain”
#endometriosis#pelvic pain#inflammation#ivf
✶Explainer1:50:00
What Frozen Eggs and Embryos Actually Preserve
Crawford says the medical process for retrieving eggs is initially the same whether they are frozen unfertilized or made into embryos. Embryos provide more information because fertilization, development, and potentially chromosome testing have already occurred, while a batch of eggs still faces attrition at thaw, fertilization, embryo growth, and genetic-normality stages.
Egg retrieval uses hormone stimulation followed by a procedure under anesthesia
Crawford reports higher survival for frozen embryos than frozen eggs
Not every surviving egg fertilizes or develops to an implantable embryo
Age at egg retrieval affects the expected proportion of chromosomally normal embryos
She suggests two to three genetically normal embryos per desired child as an optimization target, not a guarantee
“if you're freezing eggs it is not an insurance policy on your fertility”
Genetic Testing and Single-Embryo Transfer in Modern IVF
Crawford explains that an embryo biopsy can be tested for chromosome number and, in some families, a known inherited mutation. When testing identifies a chromosomally normal embryo, she favors transferring one at a time to reduce multiple-pregnancy risk without making embryos compete for uterine resources.
Chromosome testing looks for missing or extra chromosomes
Targeted testing can identify some known inherited mutations
Testing does not make every normal embryo become a baby
Single-embryo transfer lowers avoidable twin, triplet, or quadruplet risk
Identical twinning can still occur after one embryo transfer
“now that we know which embryos are genetically normal we want to transfer one embryo at a time”
#ivf#genetic testing#embryo transfer#pregnancy
❝Story· 1
❝Story10:30
Pregnancy Loss, Isolation, and the Cost of Silence
Crawford recounts four pregnancy losses, including an ectopic pregnancy that required medication and support while her husband was away. Keeping the first pregnancies private made it harder to ask for help, whereas telling trusted friends during the ectopic pregnancy showed her how much support had been unavailable while nobody knew.
Early secrecy made later requests for support more difficult
An ectopic pregnancy can become a surgical emergency
Selective disclosure is different from public disclosure
Isolation can intensify guilt and the feeling of bodily failure
“when I started losing those pregnancies nobody knew I was pregnant”
#pregnancy loss#ectopic pregnancy#support#grief
▲Takeaway· 2
▲Takeaway1:11:30
Irregular or Absent Periods Are Health Signals
Crawford defines a healthy cycle as regular and predictable for the individual, often within a broad 24-to-35-day range rather than a universal 28 days. She says absent periods outside pregnancy or hormonal contraception can reflect lack of ovulation, depleted eggs, hypothalamic dysfunction, pituitary or thyroid problems, or PCOS and warrant medical assessment.
Personal predictability matters more than matching a 28-day average
Bleeding follows a progesterone drop after ovulation when pregnancy has not occurred
No ovulation can mean no spontaneous period
Missing periods may carry broader bone, cardiovascular, metabolic, or uterine risks depending on the cause
“a normal period is one that is regular and predictable”
#menstrual cycle#amenorrhea#ovulation#hormones
▲Takeaway2:13:30
When to Question a Fertility Treatment Plan
Crawford encourages patients to seek another opinion when repeated treatment is not working or when they cannot get adequate explanations from their clinician. She identifies irregular periods, life-disrupting pain, and an existing diagnosis associated with infertility as reasons to seek care rather than waiting through a routine year of unsuccessful attempts.
Repeating the same unsuccessful approach may justify fresh clinical review
Patients should understand why treatment choices are being made
Inability to speak with a doctor is a red flag in Crawford's view
Known risk factors change the case for waiting before evaluation