How Pregnancy Affects Your Brain: Are You Really Forgetful?
- heybabymobile
- Nov 26, 2025
- 5 min read

How Pregnancy Affects Your Brain: Are You Really Forgetful?
Pregnancy is often described as a time of joy, excitement, and anticipation, but for many women, it’s also a time of surprising brain fog, forgetfulness, and confusion. You may find yourself walking into a room and forgetting why you went in there, or struggling to remember simple things like appointments or the names of familiar people. It’s a phenomenon commonly referred to as "pregnancy brain," but is it real? And if so, what causes it?
In this blog, we’re diving into the science behind pregnancy and brain function to explore how pregnancy affects your cognitive abilities and why forgetfulness is a common (and completely normal) symptom.
1. What Exactly Is Pregnancy Brain?
"Pregnancy brain" is a term that refers to the forgetfulness, mental fog, and difficulty concentrating that many pregnant women experience. Some describe it as feeling like they're walking around in a daze or as if their mind is just not firing on all cylinders. While it's not a formal medical diagnosis, it's a term that's widely used to describe this common phenomenon.
But is it just a myth or an excuse for a few absent-minded moments, or is there something more to it?
2. The Hormonal Rollercoaster: Blame It on Hormones
One of the primary culprits behind pregnancy brain is the drastic increase in hormones that occurs during pregnancy. The surge of hormones like progesterone and estrogen can affect your brain's neurotransmitters and influence various cognitive functions. These hormonal shifts can lead to memory lapses, difficulty concentrating, and slower processing speeds.
Progesterone: This hormone, which helps maintain the pregnancy, can have a sedative effect on the brain. Some studies suggest that the increase in progesterone may lead to feelings of drowsiness, fatigue, and difficulty concentrating.
Estrogen: While estrogen plays an essential role in fetal development and maintaining the pregnancy, higher levels can also affect mood and cognitive function, contributing to forgetfulness and mental fog.
So, while you might feel like your brain is running at half speed, it’s likely because your body is flooded with these pregnancy hormones.
3. The Distraction of Pregnancy: Too Much on Your Mind
Pregnancy is a time of constant change, and your brain has a lot to process—physically, emotionally, and mentally. There’s a lot of mental energy dedicated to keeping track of doctor’s appointments, preparing for the baby, managing daily responsibilities, and navigating your own physical changes. As a result, your brain may prioritize certain tasks and let others slip through the cracks.
Think of it as multitasking at its highest level, where the brain has to filter and organize a large amount of information. In this chaotic period, small things like forgetting your keys or having trouble recalling a word are less about actual memory loss and more about your brain being overloaded with tasks.
4. Sleep Deprivation: A Major Factor in Mental Fog
Many pregnant women experience disrupted sleep patterns, especially in the later stages of pregnancy. Between frequent trips to the bathroom, finding a comfortable sleeping position, and physical discomfort, sleep can become hard to come by. This lack of rest can significantly affect your cognitive abilities.
Sleep deprivation has been shown to impair memory, concentration, and problem-solving skills. Since a good night’s sleep is crucial for brain function, the sleep disruptions that come with pregnancy can exacerbate pregnancy brain. In fact, the later in pregnancy you are, the more likely you are to experience sleep disturbances, and the more likely those disturbances will impact your mental clarity.
5. The Stress and Anxiety of Pregnancy
Along with the hormonal shifts and sleep disruptions, pregnancy is a time of heightened emotions and stress. Anxiety about the baby’s health, concerns about childbirth, or managing life with a newborn can weigh heavily on your mind. Stress can lead to poor memory and difficulty focusing, as it often triggers the release of cortisol, a hormone that can impair brain function, particularly in areas related to memory.
It’s normal to feel overwhelmed during pregnancy, and that stress can affect your ability to think clearly. Mental health during pregnancy is often overlooked, but it's just as important as physical health, and managing anxiety and stress can go a long way in reducing pregnancy brain.
6. Is Pregnancy Brain Permanent?
Good news: Pregnancy brain isn’t forever. For most women, the brain fog and forgetfulness associated with pregnancy tend to disappear after childbirth, as the body returns to its pre-pregnancy hormone levels. Many women report feeling much sharper and more focused once they’ve adjusted to life with their newborn and had some time to recover.
However, it’s important to note that the effects of pregnancy on your brain can vary. Some women may experience more severe cognitive changes, while others may not notice any significant differences in their memory or concentration. If you find that symptoms persist or worsen after childbirth, it’s a good idea to talk to your healthcare provider, as other factors like postpartum depression or sleep deprivation could also be playing a role.
7. How to Cope with Pregnancy Brain
If you’re struggling with pregnancy brain, there are a few strategies that can help keep you on track:
Stay organized: Write things down, make to-do lists, and use reminders on your phone to help you remember appointments, tasks, and important dates.
Prioritize sleep: Rest when you can. Take naps, and don’t feel guilty about needing extra sleep. Try to create a relaxing nighttime routine to improve the quality of your sleep.
Practice mindfulness: Pregnancy can be a time of mental overload. Meditation or relaxation techniques can help reduce stress and improve focus.
Ask for help: Don’t hesitate to ask your partner, family, or friends for help with tasks or reminders. Everyone understands that pregnancy is a lot to handle.
8. When Should You Worry About Pregnancy Brain?
For the most part, pregnancy brain is a temporary and natural part of the experience, but there are some cases where it’s important to take it seriously. If you notice that your forgetfulness or cognitive decline is severe or if you’re having difficulty performing everyday tasks, it could be a sign of something more serious, such as prenatal depression or anxiety, which may require professional support.
Also, if you have concerns about how pregnancy is affecting your brain, or if you experience memory loss that seems unusual, it’s always a good idea to talk to your doctor. They can help rule out other potential causes and guide you on the best steps to take.
Final Thoughts: It’s All Part of the Journey
Pregnancy brain is a common, temporary condition that many women experience, and it’s usually nothing to worry about. The combination of hormonal shifts, sleep disruptions, and the mental load of pregnancy can lead to forgetfulness and brain fog, but these symptoms are often short-lived. If you’re struggling with pregnancy brain, remember to give yourself grace and practice self-care during this busy time in your life.
At the end of the day, your body is doing something incredible- creating a tiny human- and it’s no surprise that your brain may need a little break along the way. Whether you’re losing your keys for the fifth time today or forgetting what you were going to say mid-sentence, rest assured that it’s all part of the beautiful chaos of pregnancy!



Comments