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4th Months Pregnancy: Symptoms, Safety, & Fetal Development

4th month pregnancy

Congratulations, you've crossed the threshold into the fourth month of your pregnancy! As you continue along this 7iraculous journey of motherhood, the fourth month marks a time of significant growth and excitement for both you and your growing baby. 

From the subtle fluttering movements that herald the first sensations of life within to the anticipation of seeing your little one's features take shape in ultrasound images, this stage is filled with wonder and awe. Amidst the myriad of physical changes and emotional fluctuations, it's essential to prioritize self-care and nourishment.

Here at Pink Orchid, nestled in the heart of Pune, India, we understand the importance of nurturing expectant mothers during this transformative time. 

With our specialized prenatal massages tailored to support your changing body and ease any discomfort, along with gentle baby massages offered in the comfort of your own home, we're dedicated to ensuring that every step of your pregnancy journey is met with care, comfort, and tranquility.

Table Of Contents

4 Months Pregnancy Symptoms

Embarking on the fourth month of pregnancy brings forth a blend of anticipation and wonder as you continue to witness the incredible journey of life within. Here’s a detailed look at some common symptoms and changes you might experience during this pivotal stage:

1. Visible Baby Bump

As the uterus continues to expand to accommodate your growing baby, you'll likely notice a more pronounced baby bump around the 4-month mark. This visible sign of pregnancy can be both exciting and a gentle reminder of the life blossoming inside you.

2. Increased Energy

One of the delightful shifts many expectant mothers experience during the second trimester is a boost in energy levels. Unlike the fatigue often felt in the initial months, the 4-month milestone might bring a renewed sense of vitality, allowing you to engage in daily activities with greater zest.

3. Reduced Morning Sickness

The relentless waves of nausea and morning sickness that characterized the early weeks of pregnancy tend to diminish by the fourth month for many women. This relief often marks a more comfortable phase of pregnancy, making it easier to enjoy meals and daily routines without the constant queasiness.

4. Breast Changes

Your breasts continue to change, becoming larger, fuller, and possibly more tender. These transformations are a natural part of preparing your body for breastfeeding. Investing in comfortable and supportive maternity bras can help alleviate any discomfort and provide the necessary support.

5. Fetal Movement (Quickening)

One of the most magical moments around the 4-month stage is feeling your baby move for the first time. Often described as flutters or "quickening," these gentle movements are a beautiful reminder of the active life growing within you. While every pregnancy is unique, many women begin to feel these first movements between 16 to 20 weeks.

6. Skin Changes And Pregnancy Glow

Changes in hormones throughout pregnancy can result in a variety of alterations to the skin. Some women may notice a darkening of the skin around the nipples, known as the areolas.

Additionally, the increased blood flow and hormonal activity often result in a radiant complexion, often referred to as the "pregnancy glow." While these changes are natural and temporary, maintaining a skincare routine tailored to your skin's needs can help keep your skin healthy and glowing throughout your pregnancy journey.

What Happens To Your Baby In The 4th Month Of Pregnancy?

Embarking on the fourth month of pregnancy brings forth a myriad of developments for your growing baby. This period is filled with significant changes that shape the foundation for your baby's future growth and well-being.

Let's explore these fascinating developments in greater detail:

1. Fetal Growth

  • Size And Proportions: By the end of the fourth month, your baby has achieved a length of about 5-6 inches, roughly equivalent to the size of an avocado.

  • Facial Features: The face is becoming more distinct, with eyes moving closer together, and the ears shifting to their final position. The facial muscles are also developing, allowing for subtle expressions.

2. Organ Development

  • Heart Function: The heart has developed into a more efficient pumping organ, with the four chambers fully formed and functioning.

  • Kidney Activity: The kidneys are starting to produce urine, which gets released into the amniotic fluid, helping to maintain the fluid balance around the baby.

3. Limb Movement

  • Limb Formation: The arms and legs, which were previously buds, have now developed into distinct limbs with joints and muscles.

  • Spontaneous Movements: While these movements might not be strong enough for you to feel externally, your baby is practicing various movements, flexing their tiny arms and kicking their legs.

4. Fingerprints

  • Unique Patterns: By the end of this month, the unique swirls and patterns of your baby's fingerprints have formed. These patterns are permanent and will remain the same throughout their life.

5. Sensory Development

  • Brain Nerve Cells: The nerve cells in the brain are proliferating and forming intricate connections, laying the groundwork for cognitive and sensory functions.

  • Sensory Organs: The eyes are becoming more defined with retinas forming, the ears are shifting towards their final position, and taste buds are developing in the mouth.

6. Hair And Nails

  • Lanugo: A fine, soft hair called lanugo begins to cover your baby's body. This hair helps regulate their body temperature and will typically be shed before birth.

  • Nail Growth: The nails on the fingers and toes are starting to grow, although they may be thin and delicate at this stage.

7. Sexual Differentiation

  • Genital Development: The sexual organs are becoming more distinct, making it possible to identify the baby's sex through ultrasound, if desired.

8. Swallowing And Breathing

  • Swallowing Practice: Your baby is practicing swallowing amniotic fluid, which helps develop the digestive system and prepares them for feeding after birth.

  • Breathing Movements: While still in the early stages, the baby is making "breathing" movements, inhaling and exhaling the amniotic fluid, which aids in lung development.

4 Month Pregnancy Baby Weight 

The fourth month of pregnancy is a time of rapid growth and development for your baby. As your little one continues to flourish, you might be curious about their weight and size. Let's explore the expected baby weight and growth during the 4th month of pregnancy in more detail:

  1. Average Baby Weight: By the end of the fourth month, your baby typically weighs around 4 to 6 ounces. This weight can vary, with some babies weighing slightly less or more depending on individual growth rates.

  2. Comparative Size: At this stage, your baby is approximately the size of an avocado, measuring about 5-6 inches in length from crown to rump. This gives you a tangible comparison to visualize their growth.

  3. Rapid Growth Spurt: The 4th month is characterized by a significant growth spurt for your baby. They are adding layers of fat, muscle, and bone, which contribute to their increasing weight.

  4. Ultrasound Measurements: If you have an ultrasound during this month, the technician might measure the baby's weight and size, providing you with more accurate information about their development.

  5. Placental Function: The placenta plays a crucial role in nourishing your baby. As your baby grows, the placenta also increases in size and efficiency, ensuring your baby receives essential nutrients for healthy development.

  6. Genetic Factors: It's important to remember that genetics play a role in determining your baby's weight. Factors such as parental size, ethnicity, and health history can influence your baby's growth pattern.

  7. Amniotic Fluid Volume: The volume of amniotic fluid surrounding your baby also contributes to their overall weight. Adequate levels of amniotic fluid are essential for cushioning and protecting your baby as they grow.

  8. Health And Nutrition: Your diet and overall health directly impact your baby's growth and weight. Eating a balanced diet rich in nutrients and maintaining a healthy lifestyle can support optimal fetal development and weight gain.

4 Month Pregnancy Stomach Size

As your pregnancy progresses, you might notice changes in the size and shape of your stomach. By the fourth month, your baby is growing rapidly, which can impact the appearance and size of your abdominal area.

Let's delve into what you can expect in terms of stomach size during the 4th month of pregnancy:

1. Visible Baby Bump

  • By the end of the fourth month, many women begin to develop a noticeable baby bump as the uterus expands.

  • This expansion causes the abdomen to protrude, resulting in a rounded and more prominent appearance.

  • The size and shape of the bump can vary, depending on factors like pre-pregnancy weight, abdominal muscle tone, and the position of the baby.

2. Size Variations

  • The size of your stomach at 4 months can differ significantly among women.

  • Factors such as body shape, muscle tone, and the number of pregnancies can influence the extent of stomach growth.

  • Some women might have a more pronounced bump due to factors like shorter stature or a smaller frame, while others might have a subtler bump, especially if it's their first pregnancy.

3. Fundal Height Measurement:

  • Healthcare providers often use the "fundal height" measurement to assess fetal growth and development.

  • This involves measuring the distance from the pubic bone to the top of the uterus.

  • At 4 months, the fundal height is typically around the level of the belly button or slightly below, providing valuable insights into the baby's positioning and growth rate.

4. Muscle And Skin Changes:

  • As the baby grows and the uterus expands, there is significant stretching experienced by the abdominal muscles and skin.

  • This stretching can lead to changes in skin texture, such as the development of stretch marks or itching.

  • Some women may experience discomfort or tightness in the abdominal area as the muscles adapt to the increasing size of the uterus.

5. Personal Experience

  • Every woman's body responds differently to pregnancy, making the rate and extent of stomach growth unique for each individual.

  • Factors like previous pregnancies, abdominal muscle strength, and overall body shape can influence how and when your stomach size changes.

  • It's essential to embrace these changes as a natural part of pregnancy and focus on nourishing and caring for both yourself and your growing baby.

4 Month Pregnancy Exercises To Stay Healthy 

Maintaining an active lifestyle during pregnancy can offer numerous benefits for both you and your baby. Exercise can help boost your energy levels, improve your mood, and prepare your body for childbirth.

However, it's essential to choose safe and appropriate exercises as your body undergoes significant changes. Let's explore some recommended exercises to stay healthy during the 4th month of pregnancy:

1. Walking

  • Walking is a safe and beneficial low-impact exercise for pregnant women in general.

  • It helps improve circulation, strengthen the heart and lungs, and can be easily tailored to your fitness level.

  • Aim for at least 30 minutes of brisk walking most days of the week, or break it up into shorter sessions throughout the day.

2. Prenatal Yoga

  • Prenatal yoga focuses on gentle stretching, breathing techniques, and relaxation, making it an excellent choice for pregnancy.

  • It can help improve flexibility, reduce stress, and prepare the body and mind for labor and delivery.

  • Look for prenatal yoga classes or follow online videos specifically designed for pregnant women to ensure safety and proper guidance.

3. Swimming And Water Aerobics

  • Swimming and water aerobics are ideal exercises during pregnancy as they provide a full-body workout without putting strain on the joints.

  • The buoyancy of water can help relieve pregnancy-related discomforts like back pain and swelling.

  • Engage in swimming laps, water aerobics classes, or gentle water exercises to stay fit and cool during your workouts.

4. Pelvic Floor Exercises (Kegels)

  • Pelvic floor exercises, commonly known as Kegels, are crucial for maintaining pelvic muscle strength during pregnancy and preparing for childbirth.

  • They help improve bladder control, support the uterus, and can aid in postpartum recovery.

  • To perform Kegels, contract and hold the pelvic floor muscles for a few seconds, then release. Aim for several sets throughout the day to strengthen these essential muscles.

5. Modified Strength Training

  • Incorporating light strength training exercises can help maintain muscle tone and strength during pregnancy.

  • Focus on exercises that target major muscle groups using lighter weights or resistance bands to prevent strain and injury.

  • Avoid exercises that involve lying flat on your back or heavy lifting, and always listen to your body's cues to ensure safety and comfort.

How To Sleep During 4 Months Of Pregnancy?

Sleeping comfortably during pregnancy can be a challenge due to bodily changes. Here are some quick tips to help you get better sleep during the 4th month:

  1. Supportive Pillows: Use pillows to support your back, hips, and knees. A pillow between your knees can align your hips.

  2. Sleeping Position: Sleep on your side, preferably the left side, to improve blood flow and reduce pressure on blood vessels.

  3. Bedtime Routine: Establish a calming bedtime routine with activities like reading or a warm bath to help your body relax.

  4. Limit Fluid Intake: Reduce evening fluid intake to minimize nighttime bathroom trips while staying hydrated during the day.

  5. Comfortable Environment: Create a cool, dark, and quiet sleep environment using blackout curtains and white noise machines.

Precautions To Take During 4th Month Of Pregnancy

The 4th month of pregnancy is a time of significant growth and development for both you and your baby. While this stage often brings relief from early pregnancy symptoms, it's crucial to remain vigilant and take necessary precautions to ensure a healthy and safe pregnancy journey. 

Let's delve deeper into some important precautions to consider during the 4th month of pregnancy:

1. Regular Prenatal Check-Ups

  • Importance: Regular prenatal appointments are essential for monitoring your health, tracking the baby's growth, and identifying any potential complications early on.

  • Action: Schedule and attend all recommended prenatal visits with your healthcare provider.

  • Benefit: Early detection and intervention can help manage and mitigate potential risks, ensuring the well-being of both you and your baby.

2. Healthy Diet And Nutrition

  • Importance: A balanced and nutritious diet is crucial for providing essential vitamins, minerals, and nutrients necessary for fetal development and maternal health.

  • Action: Follow dietary guidelines tailored for pregnancy, including incorporating a variety of fruits, vegetables, lean proteins, whole grains, and dairy products.

  • Avoidance: Limit or avoid consumption of raw or undercooked foods, high-mercury fish, processed foods, and excessive caffeine to minimize the risk of foodborne illnesses and potential harm to the baby.

3. Stay Hydrated

  • Importance: Proper hydration supports optimal bodily functions, aids in digestion, and circulation, and helps prevent common pregnancy-related issues.

  • Action: Drink at least 8-10 glasses of water daily, and consider increasing fluid intake during hot weather or after physical activity.

  • Benefit: Adequate hydration can help alleviate symptoms like constipation, urinary tract infections, and dehydration, ensuring overall well-being during pregnancy.

4. Safe Exercise Routine

  • Importance: Engaging in regular exercise promotes physical fitness, strengthens muscles, improves circulation, and can help prepare your body for labor and delivery.

  • Action: Choose safe and moderate exercises tailored to your fitness level, such as walking, swimming, prenatal yoga, or low-impact aerobics.

  • Avoidance: Avoid high-impact activities, contact sports, and exercises that involve lying flat on your back, as they can increase the risk of injury, strain, or complications.

5. Sleep Position

  • Importance: Sleep is essential for rest, recovery, and supporting the body's physiological processes during pregnancy.

  • Action: Sleep on your side, preferably the left side, to improve blood circulation, reduce pressure on major blood vessels, and enhance oxygen and nutrient delivery to the baby.

  • Enhancement: Use supportive pillows between your knees, under your abdomen, and behind your back to maintain a comfortable and aligned sleep position.

6. Avoid Harmful Substances

  • Importance: Exposure to harmful substances like tobacco, alcohol, and drugs can negatively impact fetal development and pose serious health risks.

  • Action: Refrain from smoking, consuming alcohol, or using recreational drugs throughout pregnancy.

  • Support: If you struggle with addiction or need help quitting, seek support from healthcare professionals, counselors, or support groups to ensure a healthy and substance-free pregnancy.

7. Manage Stress Levels

  • Benefit: Prioritizing mental and emotional well-being can contribute to a more positive and enjoyable pregnancy experience, benefiting both maternal and fetal health.

8. Stay Informed And Educated

  • Action: Educate yourself through reputable sources, attend prenatal classes, and engage with healthcare providers to stay informed and prepared throughout your pregnancy journey.

  • Engagement: Ask questions, voice concerns, and actively participate in discussions with your healthcare team to ensure you receive personalized guidance, support, and care tailored to your individual needs and circumstances.

Must-Know Tips To Stay Healthy In The Fourth Month Of Pregnancy

Entering the fourth month of pregnancy is an exciting phase, and staying healthy is paramount for both you and your growing baby. Here are ten must-know tips to ensure optimal health during this crucial period:

  1. Balanced Diet: Prioritize a diet rich in fruits, vegetables, lean proteins, and whole grains to nourish both you and your baby.

  2. Stay Hydrated: Drink plenty of water throughout the day to support hydration, digestion, and overall bodily functions.

  3. Regular Exercise: Engage in safe and moderate physical activity tailored to your fitness level to promote circulation, strength, and well-being.

  4. Rest and Relaxation: Prioritize quality sleep and relaxation techniques to recharge your body and manage stress levels.

  5. Prenatal Vitamins: Continue taking prenatal vitamins as prescribed to ensure adequate intake of essential nutrients like folic acid, iron, and calcium.

  6. Avoid Harmful Substances: Steer clear of alcohol, tobacco, and recreational drugs to protect fetal development and maternal health.

  7. Regular Prenatal Check-ups: Maintain regular appointments with your healthcare provider to monitor progress, address concerns, and ensure optimal care.

  8. Educate Yourself: Stay informed about pregnancy changes, symptoms, and milestones through reputable sources and healthcare professionals.

  9. Comfortable Clothing: Opt for loose-fitting and breathable maternity clothing to accommodate your changing body and enhance comfort.

  10. Positive Mindset: Foster a positive mindset, seek support from loved ones, and embrace the journey of pregnancy with joy, optimism, and gratitude.

When To See A Doctor?

Navigating the various changes and symptoms during pregnancy can sometimes raise questions and concerns. Understanding when to consult a healthcare provider is crucial for ensuring the well-being of both you and your baby. Here are five key instances when it's essential to see a doctor during pregnancy:

  1. Unusual Symptoms: If you experience severe or unusual symptoms such as severe abdominal pain, persistent headaches, blurred vision, or significant swelling, seek medical attention immediately.

  2. Decreased Fetal Movement: If you notice a significant decrease in your baby's movements or if you're concerned about changes in fetal activity, contact your healthcare provider promptly.

  3. Vaginal Bleeding: Any amount of vaginal bleeding during pregnancy should be evaluated by a healthcare professional to rule out potential complications and ensure maternal and fetal well-being.

  4. Signs Of Preterm Labor: If you experience symptoms of preterm labor such as regular contractions, pelvic pressure, or lower back pain before 37 weeks of gestation, seek medical care immediately.

  5. Emotional Or Mental Health Concerns: If you're struggling with feelings of depression, anxiety, or other emotional health concerns during pregnancy, it's essential to discuss these issues with your healthcare provider to receive appropriate support and guidance.


1. Can You Feel A Baby At 4 Months?

Yes, some women may start to feel fetal movements, often described as "flutters," around 4 months of pregnancy.

2. What Is My Baby Doing At 4 Months Pregnant?

At 4 months pregnant, your baby is developing facial features, has working taste buds, and can make facial expressions like squinting and frowning.

3. How To Know Baby's Gender?

The baby's gender can typically be determined through ultrasound or genetic testing, usually around the 18-20 week mark of pregnancy.


4th month pregnancy

As we conclude our exploration of the fourth month of pregnancy, it's clear that this stage marks a significant milestone in the journey to motherhood. At four months pregnant, many expectant mothers find themselves marveling at the tangible signs of their baby's growth and development, from the fluttering movements felt during quickening to the excitement of seeing their little one's features in ultrasound images. 

Alongside these joys, however, come the ongoing physical changes and occasional discomforts that remind us of the incredible transformation taking place within. From hormonal shifts to expanding waistlines, every aspect of this journey serves as a poignant reminder of the profound connection between mother and child. 

As we look ahead to the coming months, let us continue to embrace the wonder of pregnancy with gratitude, anticipation, and an unwavering commitment to nurturing both our own well-being and that of our growing babies. 

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