Dr Joe Whittington, who goes by Dr Joe on his social media platforms is a certified MD in Emergency Medicine based in Apple Valley, California is a social media medical educator. He uploads many real-life health-related stories and cases to educate general public about it. In one such videos, he featured a woman who just had her baby four days ago and found out that she was four months pregnant.

Is This Possible?

Dr Joe says, "technically, yes". This phenomenon is known as superfetation that occurs when a woman releases an egg and it gets fertilized and implanted after she is already pregnant.

He says, "Usually pregnancy changes such as hormonal changes, changes in the uterus, and the cervical mucous plug all work to prevent this. So superfetation is extremely rare with only about 10 documented cases. But, it is possible."

What Is Superfetation?

It is a rare phenomenon where a second pregnancy occurs alongside an existing one. This happens when another ovum or the egg is fertilized by sperm and implanted in the womb days or weeks later than the first one. Babies born from superfetation are often considered twins as they may be born on the same birth on the same day. However, not always does it happen. In the case that Dr Joe picked up, the baby had a difference of four months.

ALSO READ: Pregnancy Trimesters, Everything You Need To Know About It

So, How Does It Happen?

In humans, pregnancy occurs when an egg is fertilized by sperm and implants in the uterus. For superfetation to happen, a second egg must be fertilized and implanted separately while a pregnancy is already underway.

For this to occur, three highly unlikely events must take place:

Ovulation during an ongoing pregnancy – This is rare because pregnancy hormones typically prevent further ovulation.

Fertilization of the second egg – Once pregnant, a woman’s cervix forms a mucus plug that blocks sperm from entering, making fertilization extremely unlikely.

Implantation in an already pregnant uterus – Implantation requires specific hormonal changes that usually don’t occur once pregnancy has begun.

Additionally, a growing fetus takes up space, making it harder for another embryo to implant.

Because these conditions are so improbable, superfetation is considered nearly impossible in natural pregnancies. However, a few reported cases exist, primarily in women undergoing fertility treatments like in vitro fertilization (IVF). In such cases, an embryo is transferred into the uterus, but if ovulation unexpectedly occurs and the egg is fertilized, superfetation might happen a few weeks later.

Could There Be Any Complications?

The biggest complication with superfetation is premature birth. The baby maybe born before time and could have the following medical conditions:

• trouble breathing
• low birth weight
• movement and coordination problems
• difficulties with feeding
• brain hemorrhage or bleeding in the brain
• neonatal respiratory distress syndrome, which is a breathing disorder caused by underdeveloped lungs

Women too could have complication, which includes high blood pressure and protein in the urine, a condition called preeclampsia, and gestational diabetes.

A large new study, published in the Lancet Psychiatry journal, has shown that using antidepressant medications during pregnancy does not increase the risk of developmental disorders such as autism and attention-deficit/hyperactivity disorder (ADHD) in children.

The analysis, based on data from more than 25 million pregnancies, refutes assertions made by Robert F. Kennedy Jr. and states that there is no evidence to support a causal link between the use of almost all antidepressants during pregnancy and an increased risk of neurodevelopmental disorders.

Kennedy has previously claimed, without evidence, that certain antidepressants pose such a risk to fetuses. He has also linked vaccines to autism — a theory that has been widely debunked and contradicts established scientific evidence. The exact causes of autism remain unclear, though scientists believe neurological characteristics may begin developing in utero as the fetal brain forms.

“We know many parents-to-be worry about the potential impact of taking medication during pregnancy; our study provides reassuring evidence that commonly used antidepressants do not increase the risk of neurodevelopmental disorders such as autism and ADHD in children,” said Dr. Wing-Chung Chang of the University of Hong Kong.

Dr. Chang also warned against stopping antidepressant medication during pregnancy without medical advice.

“While all medications carry risks, so too does stopping antidepressants during pregnancy due to an increased risk of relapse,” he said.

He added that for women with moderate-to-severe depression, doctors and patients must carefully weigh the potential risks and benefits of continuing antidepressant treatment during pregnancy against the potential harms of untreated depression.

What Did The Study Find?

The meta-analysis was based on pooled data from 37 studies involving more than 600,000 pregnant women taking antidepressants and nearly 25 million pregnancies without antidepressant use.

Before adjusting for key factors such as underlying mental health conditions, the analysis found that antidepressant use during pregnancy was associated with:

• A 35 per cent increased risk of ADHD
• A 69 per cent increased risk of autism

However, these associations became greatly reduced or statistically non-significant after accounting for confounding factors.

Interestingly, antidepressant use by fathers during pregnancy was also associated with:

• A 46 per cent increase in ADHD risk
• A 28 per cent increase in autism risk

“Although our study found a small increase in the risk of autism and ADHD in the children of women who had used antidepressants during pregnancy, it also found that this risk disappeared when we accounted for other factors,” Dr. Chang said.

“The increased risk was also seen in the children of fathers who took antidepressants and of mothers with antidepressant use before, but not during, pregnancy,” he added.

“Together, this suggests that it is not the antidepressants themselves causing an increased risk of autism and ADHD, but it is more likely due to other factors, including genetic predisposition to conditions such as ADHD, autism, and mental health conditions,” the researcher explained.

Which Drugs Were Linked To Increased Risk?

Among the studies analysed, researchers found that only amitriptyline and nortriptyline remained associated with increased ADHD and autism risk.

These medications are generally considered second- or third-line treatment options for depression and are often prescribed in cases of treatment-resistant depression.

Researchers noted that women taking these medications may have more severe, chronic, or complex underlying mental health conditions, which could influence the observed association.

The study also found no difference in risk between high and low doses of antidepressants.

“The evidence suggests a link between either parent having a mental health condition and a slightly higher risk of ADHD or autism,” said Dr. Joe Kwun-Nam Chan of the University of Hong Kong.

“In addition to genetic factors, this link could be explained by the home and social environment, as ongoing family stress, changes in family functioning, and differences in parenting and caregiving may influence neurodevelopment,” he added.

He stressed the importance of ensuring that both parents have access to mental health support and treatment, both for their own wellbeing and to support the neurodevelopment of their child.

Limitations Of The Study

The researchers acknowledged several limitations, including a lack of data on factors such as socioeconomic status, lifestyle-related risks, and low birth weight in some studies.

Additionally, only a small number of studies examined antidepressant use during specific trimesters or evaluated exact dosage changes, making it difficult to draw firm conclusions in these areas.

The authors also noted that women prescribed antidepressants often have more severe depression than those who are not prescribed medication, meaning some bias may still remain despite adjustments for mental health conditions.

Former badminton player Jwala Gutta shared that she donated around 60 liters of breast milk during the first year after childbirth. Delivering a critical social message, the Commonwealth Games medallist highlighted the importance of breast milk donation and stressed that it is completely safe.

“I donated around 60 litres of breast milk to the government hospital in Hyderabad and Chennai during my first year of postpartum!” Jwala wrote in a post on the social media platform X.

Noting that many babies in the Neonatal Intensive Care Unit (NICU) do not get immediate access to their mother’s milk due to medical complications, she said that “just 100ml of donor milk can feed a tiny 1kg baby for several days” and support “dozens of infants in the NICU”.

“Donating is safe, screened, and desperately needed,” she said.

Why Breast Milk Is Important For Newborns

Babies should ideally be breastfed within the first hour of birth, often called the “golden hour”, right in the labour room. The yellowish first milk, known as colostrum, is packed with antibodies and nutrition. Early feeding can prevent low blood sugar levels, build immunity, increase the mother’s milk supply, and strengthen bonding between the mother and newborn.

However, in some cases, mothers may be unable to breastfeed due to medical conditions, low milk supply, or physical challenges such as pain, latching issues, or previous surgeries.

Further, in the case of babies in the NICU, mothers may not be able to directly breastfeed because babies are often too small, premature, or weak to suckle, or they require medical equipment like ventilators and feeding tubes that physically hinder nursing.

HealthandMe spoke to experts to understand how breast milk donation works and the myths surrounding it.

Experts Say Breast Milk Donation Is Safe

Health experts noted that donating breast milk is safe and extremely beneficial for premature or medically fragile babies. However, storing it the right way is crucial.

Also read: Shocking Study Finds Andes Hantavirus Could Linger In Semen For Years, Pose Transmission Risk

“Breast milk donation is safe when done through certified human milk banks that follow proper screening, pasteurization, collection, and storage protocols,” said Dr. Bhavya Rathore, Senior Consultant - Obstetrician & Gynecologist, Cloudnine Group of Hospitals, Indirapuram.

“Breast milk donation can be a lifesaving gift, especially for premature or low-birth-weight babies whose mothers may be unable to produce enough milk initially. Donating breast milk is considered safe when done through certified human milk banks that follow strict screening, testing, pasteurization, and storage protocols. Donors are usually screened for infections like HIV, Hepatitis B/C, and certain medications or lifestyle habits before donation,” added Dr. Sakshi Goel, Senior Consultant - Obstetrics & Gynecology, Rainbow Children's Hospital, Delhi.

Busting Common Myths Around Breast Milk Donation

Myth: Donating breast milk will reduce nutrition for a mother’s own baby

Fact: Healthy lactating mothers with an adequate milk supply can often donate excess milk safely without affecting their baby’s nutritional needs.

Myth: Donated milk is unsafe

Fact: Certified milk banks carefully screen donors and process milk to ensure safety.

Myth: Donated milk may directly transmit diseases

Fact: Properly processed donor milk undergoes pasteurization and multiple safety checks before use.

How To Safely Store Breast Milk

Dr. Bhavya told HealthandMe that for safe storage, mothers should express milk with clean hands, use sterilised BPA-free containers, and refrigerate milk immediately after expression.

“Breast milk can be stored in the refrigerator for a few days and frozen for longer storage. Proper labelling with date and time of expression is important,” she added.

Dr. Sakshi told HealthandMe that for best storage, breast milk should be kept in clean airtight containers, refrigerated if used within a few days, or frozen for longer storage while maintaining the cold chain.

The experts urged that mothers should avoid donating breast milk if they have certain infections, smoke, consume excessive alcohol, or are taking medications that may not be safe during breastfeeding.

Fetal oxygen levels fall if asthma is not well controlled, which is why the baby is more at risk of being born prematurely or of low birth weight.

This is because when breathing is compromised due to a lack of control, the oxygen supply to the baby through the placenta is limited. It usually happens when the hormones affect lung function.

Do Not Stop Taking Inhalers During Pregnancy

Even though the wide range of medications that can be used safely during pregnancy without any health risks is often highlighted by researchers, the number of people who stop using their inhalers keeps increasing.

Several pregnant women, out of fear, think that the only symptom of being pregnant is the lack of breath, so they decide to use their inhalers to a lesser extent, which, actually, at times can worsen the situation even further.

At present, the practice of henceforth making decisions according to one's own gut feelings without looking for professional advice substantially raises the level of hazard.

Factors For Flare-ups

Living in a bustling city and being around allergens means there are always irritants in the air, making the very act of managing asthma day by day quite difficult.

Also, the anxiety that often goes with the responsibilities of raising children or the fear of not meeting the expectations of society, at times, has an asthma-inducing effect, like a flare-up.

Initial signs of illness, such as coughing or a sensation of chest constriction, which are distressing, should not be taken lightly as they are signals that, if not treated, will only lead to a bigger problem. By being vigilant, results can be improved without a drastic overhaul of one's daily habits.

Continue Asthma Treatment In Pregnancy

The strategy needs to be proactive and focused on prevention. Checking the symptoms regularly, taking the medication properly, and avoiding the things that are known to cause symptoms are a few of the basic aspects.

Besides that, small steps like enhancing the quality of air indoors, staying well hydrated, and doing breathing exercises on a regular basis are great in the control of the disease. The majority of ladies with asthma, if they receive adequate treatment and are knowledgeable about their disease, can look forward to an uneventful pregnancy and a safe delivery.

Actually, the key point is that pregnancy shouldn't mean stopping your asthma treatment. On the other hand, it's the time when the mother and the baby need to be protected through knowledgeable and trustworthy care.