Pregnancy Week 39 is an exciting milestone because your due date is very close. At this stage, your baby continues important development while preparing for life outside the uterus.
Although you may feel ready to meet your baby, the final days and weeks of pregnancy still support continued growth and development. Your baby's brain, lungs and other body systems continue to mature.
You may experience increased pelvic pressure, irregular contractions, difficulty sleeping, tiredness and frequent urination. Your baby's movements should still remain noticeable, even though they may feel different because there is less space inside the uterus.
What Happens During Pregnancy Week 39?
During Week 39, your baby continues gaining weight and storing body fat.
The brain continues to develop, and the lungs and other organs continue their final stages of maturation.
Your baby's body is becoming increasingly prepared for:
- Breathing
- Feeding
- Maintaining body temperature
- Adapting to life outside the uterus
Many babies are positioned head-down and ready for birth.
How Big Is the Baby at Week 39?
Your baby is approximately the size of a small watermelon, although exact size and weight can vary.
Every baby grows at a different rate.
Your healthcare provider will monitor your baby's growth and overall well-being according to your individual pregnancy.
Baby's Position at Week 39
Many babies are now positioned head-down.
Some babies may have moved deeper into the pelvis.
This can increase pressure in the lower abdomen and pelvic area.
You may notice:
- Pelvic heaviness
- Pressure when walking
- Frequent urination
- Discomfort when changing positions
- Increased pressure in the lower back
Your healthcare provider can discuss your baby's position during prenatal appointments.
Baby's Movement at Week 39
Your baby's movements should still be noticeable every day.
You may feel:
- Kicks
- Stretching
- Pushing
- Shifting
- Turning
- Hiccups
- Pressure under the ribs
- Movement lower in your abdomen
Because your baby is larger and space is limited, movements may feel different from earlier pregnancy.
You may notice more stretching and pushing rather than large rolling movements.
However, a significant reduction or concerning change in your baby's normal movement pattern should always be reported promptly.
Understanding Your Baby's Movement Pattern
Every baby has a different pattern of activity.
Your baby may have periods of movement followed by periods of sleep.
The important thing is to understand what is normal for your baby.
Do not assume that reduced movement is normal because your due date is close.
If you notice that your baby is moving significantly less than usual or if you are concerned about a change in movement, contact your maternity care provider promptly.
Baby's Brain Development
Your baby's brain continues developing rapidly.
Important connections between nerve cells continue forming.
These connections support:
- Movement
- Coordination
- Sensory processing
- Learning
- Communication
Brain development will continue after birth and throughout childhood.
Baby's Lungs
The lungs continue their final stages of development.
By this stage, your baby's respiratory system is increasingly prepared for breathing outside the uterus.
The final period of pregnancy continues to support important maturation.
Baby's Skin and Body Fat
Your baby continues storing body fat beneath the skin.
This body fat will help your baby regulate body temperature after birth.
The skin becomes smoother, and your baby has a fuller appearance.
Pregnancy Symptoms During Week 39
You may experience:
- Pelvic pressure
- Back pain
- Frequent urination
- Difficulty sleeping
- Tiredness
- Heartburn
- Constipation
- Mild swelling
- Leg cramps
- Breast tenderness
- Increased vaginal discharge
- Braxton Hicks contractions
Every pregnancy is different, and symptoms may vary.
Pelvic Pressure
If your baby has moved lower into the pelvis, you may feel increased pressure.
You may experience:
- Heaviness in the pelvic area
- Discomfort while walking
- Pressure when standing
- Difficulty getting comfortable
- Increased pressure on the bladder
Rest whenever necessary and avoid activities that cause significant discomfort.
Braxton Hicks Contractions
Braxton Hicks contractions may become more noticeable during Week 39.
They may feel like tightening or hardening of the uterus.
These contractions can be irregular.
Sometimes they may become less noticeable after:
- Resting
- Drinking water
- Changing position
However, contractions that become regular, stronger, longer and closer together may indicate that labor is beginning.
Changes in Vaginal Discharge
As your body prepares for labor, you may notice changes in vaginal discharge.
You may notice:
- Increased discharge
- Thick mucus
- Jelly-like mucus
- Mucus with a small amount of blood
This can sometimes happen as the cervix begins preparing for labor.
However, heavy vaginal bleeding is not normal and requires urgent medical attention.
Your Water Breaking
Your water may break before or during labor.
It may feel like:
- A sudden gush of fluid
- A slow trickle
- Continuous leaking
If you think your water has broken, contact your maternity care provider or maternity unit.
Back Pain and Discomfort
Back discomfort can become more noticeable during the final days of pregnancy.
You may find relief by:
- Maintaining good posture
- Changing positions regularly
- Using pillows for support
- Taking gentle walks if appropriate
- Practicing pregnancy-safe stretching
- Resting when needed
Contact your healthcare provider if pain is severe, sudden or unusual.
Nutrition During Pregnancy Week 39
Continue following a balanced and varied diet.
Protein
Choose protein-rich foods such as:
- Eggs
- Chicken
- Lean meat
- Beans
- Lentils
- Yogurt
- Tofu
- Nuts
- Low-mercury fish
Fruits and Vegetables
Include a variety of fruits and vegetables.
They provide:
- Fiber
- Vitamins
- Minerals
Whole Grains
Choose options such as:
- Oats
- Brown rice
- Whole-wheat bread
- Quinoa
- Whole-grain cereals
Healthy Fats
Healthy sources include:
- Avocado
- Olive oil
- Nuts
- Seeds
- Low-mercury fish
Important Nutrients
Iron
Iron remains important for supporting your blood supply during pregnancy.
Good sources include:
- Lean meat
- Beans
- Lentils
- Leafy vegetables
- Fortified foods
Calcium
Calcium supports healthy bones and teeth.
Folate
Continue taking folate or folic acid according to your healthcare provider's recommendations.
Vitamin D
Vitamin D supports calcium absorption and bone health.
Follow your healthcare provider's advice regarding supplements.
Staying Hydrated
Continue drinking water regularly.
Good hydration supports:
- Digestion
- Circulation
- Normal body functions
It may also help with constipation.
Even if you are urinating frequently, avoid intentionally reducing your water intake.
Foods to Avoid
Continue following pregnancy food-safety recommendations.
Avoid:
- Alcohol
- Raw or undercooked meat
- Raw or undercooked eggs
- Unpasteurized dairy products
- Raw shellfish
- Fish high in mercury
Wash fruits and vegetables thoroughly before eating.
Caffeine During Pregnancy
A commonly recommended limit is 200 mg of caffeine per day.
Caffeine may be found in:
- Coffee
- Tea
- Chocolate
- Energy drinks
- Some medications
Consider your total caffeine intake from all sources.
Exercise During Week 39
If your pregnancy is uncomplicated and your healthcare provider has not recommended restrictions, gentle activity may still be appropriate.
You may consider:
- Walking
- Gentle stretching
- Prenatal yoga
- Swimming
Listen to your body.
Stop exercising and seek medical advice if you experience concerning symptoms such as severe pain, dizziness, bleeding or fluid leakage.
Sleep During Week 39
Sleep can be difficult during the final days of pregnancy.
Common reasons include:
- Pelvic pressure
- Frequent urination
- Heartburn
- Baby movements
- Anxiety
- Excitement
- Difficulty finding a comfortable position
Use pillows to support your belly, back and legs.
Rest whenever possible.
Even short periods of relaxation can be helpful.
Prenatal Care at Week 39
Continue attending all scheduled prenatal appointments.
Your healthcare provider may monitor:
- Blood pressure
- Baby's position
- Baby's movements
- Pregnancy symptoms
- Your overall health
Ask questions about labor, delivery or any symptoms that concern you.
Preparing for Labor
At Week 39, your baby may arrive at any time.
Make sure you have:
- Your hospital bag ready
- Important documents prepared
- Transportation arranged
- Important phone numbers saved
- Essential newborn supplies ready
- A plan for practical support after birth
You may also want to discuss with your healthcare provider when you should contact the maternity unit.
Signs of Labor
Regular Contractions
Labor contractions usually become:
- More regular
- Stronger
- Longer
- Closer together
They generally continue even if you rest or change position.
Your Water Breaking
Your water may break as a sudden gush or a continuous trickle of fluid.
If you think your water has broken, contact your maternity care provider.
Bloody Show
You may notice mucus containing a small amount of blood.
This can happen as the cervix begins changing in preparation for labor.
Heavy bleeding is not normal and requires urgent medical attention.
Increasing Pressure
You may feel stronger pelvic or rectal pressure as your baby moves deeper into the pelvis.
However, pressure alone does not always mean that active labor has started.
Emotional Well-Being
You may experience many emotions during Week 39.
You might feel:
- Excited
- Nervous
- Impatient
- Happy
- Worried
- Tired
- Overwhelmed
These feelings can be completely normal.
Try to focus on rest and simple preparation.
Talk to your partner, family, friends or healthcare provider about anything that worries you.
If persistent sadness or anxiety is affecting your daily life, speak with a healthcare professional.
When Should You Seek Medical Help?
Contact your healthcare provider or maternity unit promptly if you experience:
- Heavy vaginal bleeding
- Fluid leaking from the vagina
- Regular or increasingly painful contractions
- Severe abdominal or pelvic pain
- Severe headache
- Vision changes
- Sudden significant swelling
- Fever
- Fainting
- Sudden or severe difficulty breathing
- A significant reduction or concerning change in your baby's movements
Do not ignore severe or unusual symptoms during pregnancy.
Pregnancy Week 39 Checklist
- Continue taking recommended prenatal supplements.
- Attend all prenatal appointments.
- Pay attention to your baby's normal movement pattern.
- Keep your hospital bag ready.
- Prepare important documents.
- Confirm transportation.
- Review the signs of labor.
- Keep important phone numbers available.
- Prepare a safe sleeping space for your baby.
- Organize newborn essentials.
- Eat a balanced diet.
- Drink enough water.
- Rest whenever possible.
- Make time for relaxation.
Frequently Asked Questions
How big is the baby at Week 39?
Your baby is approximately the size of a small watermelon, although individual size and weight can vary.
Should my baby still move at Week 39?
Yes. Your baby's movements should remain noticeable. The movements may feel different because there is less space, but a significant reduction or concerning change should be reported promptly.
Can labor start at Week 39?
Yes. Labor can begin at any time during Week 39.
How do I know if contractions are real labor contractions?
True labor contractions generally become more regular, stronger, longer and closer together. If you are unsure, contact your maternity care provider.
What should I do if my water breaks?
Contact your maternity care provider or maternity unit promptly for advice.
What should I prepare at Week 39?
Keep your hospital bag, documents, transportation plan, newborn supplies and support arrangements ready.
Conclusion
Pregnancy Week 39 is an exciting and important milestone. Your baby is continuing important development and may arrive at any time.
Your baby's movements should still remain noticeable, even though they may feel different because of limited space inside the uterus. Always pay attention to your baby's usual movement pattern.
Your body may also be preparing actively for labor. Pelvic pressure, Braxton Hicks contractions, increased vaginal discharge, back discomfort and frequent urination can all become more noticeable.
Continue attending your prenatal appointments, eating a balanced diet, staying hydrated and resting whenever possible.
Keep your hospital bag and practical plans ready, and make sure you know how to contact your maternity care provider if labor begins or if you experience any concerning symptoms.
Soon, you may finally meet your baby.
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