What are the early signs of labour at 38 weeks?

At 38 weeks, your baby is the size of a leek, measuring roughly 49.8 centimetres from crown to heel and weighing around 3 kilograms. They are shedding their lanugo (the fine, downy hair that covered their body) and the protective vernix caseosa. ACOG notes they are actively swallowing these substances, which will combine with amniotic fluid and bile to form their very first sticky stool, known as meconium. Their brain development continues to be absolutely astonishing. The billions of complex neural pathways are forming and refining at lightning speed, allowing them to process complex sensory information. They are already practicing vital skills like breathing, sucking, and swallowing. These coordinated reflexes are absolutely crucial for their survival and feeding success during those first few days outside the womb. The baby's lungs are fully mature and capable of independent function. The vital production of surfactant, a soapy substance that prevents the air sacs from collapsing, has reached its peak. While they are still practicing breathing by inhaling amniotic fluid, their respiratory system is incredibly robust and ready for the atmosphere. Their vocal cords are also fully developed, preparing for that first powerful cry. Their immune system remains highly active, continuously drawing precious antibodies from your bloodstream through the placenta. This powerful biological shield will fiercely protect them from a wide variety of harmful infections during their first few vulnerable months. This incredible biological transfer is one of the many miraculous ways your body actively protects your newborn until their own immune system matures. The accumulation of essential white fat is slowing down slightly, but their body temperature regulation systems are now excellent. This crucial fat will help your newborn strictly regulate their own body temperature once they leave the warm, 37-degree environment of your womb. As they wonderfully plump up, their skin has lost its transparent appearance and is now smooth and opaque. Finally, your baby has likely established a highly distinct, predictable pattern of waking and sleeping. You will notice periods of intense, vigorous rolling followed by long, quiet stretches. Space is now at an absolute premium, so sharp kicks are largely replaced by heavy, deliberate squirming. It is incredibly important to become deeply familiar with this unique daily routine.

At 38 weeks, your beautiful bump has reached its maximum physical capacity. Your uterus is sitting quite low as the baby engages deep into your pelvic cavity. This 'dropping' can significantly relieve the intense pressure on your diaphragm, finally allowing you to take deep, satisfying breaths again. However, this sheer weight is now transferred directly onto your bladder and pelvic floor. Early signs of labour include a dull, persistent lower backache, frequent loose bowel movements, and an intense feeling of pelvic pressure. As the hormone relaxin floods your system, your pelvic joints become incredibly loose, leading to a pronounced waddling gait. You might also experience sudden, sharp pains in your vagina—often termed 'lightning crotch'—as the baby's heavy head presses directly on sensitive pelvic nerves. Your cervix is actively effacing (thinning out) and slowly beginning to dilate in preparation for the monumental task of birth. You might notice an increase in thick, jelly-like vaginal discharge. This could be your mucus plug, or 'show', safely dislodging as the cervix changes shape. This is a wonderful, positive sign that your body is meticulously preparing for active labour, though birth could still be days away. Your cardiovascular system remains under immense strain, pumping a massive, increased volume of blood. This can frequently lead to mild third trimester swelling, known as oedema, in your ankles and feet. Elevating your tired legs whenever possible and wearing supportive, comfortable footwear can significantly help manage this common symptom. Ensure you are drinking plenty of water to help flush excess fluids from your system. Braxton Hicks contractions—those sudden practice tightenings of your uterus—may become much more frequent, surprisingly strong, and sometimes quite uncomfortable. You might feel your abdomen suddenly tighten and become rock hard for a minute before completely relaxing again. These should always remain highly irregular. If you experience them, sit down immediately, rest, and drink a large glass of cool water. Finding a comfortable sleeping position is notoriously difficult with a large, heavy bump, and you may be waking frequently to desperately empty your squashed bladder. Always try to sleep strictly on your side, preferably the left, to ensure optimal blood flow to your baby and placenta. Utilizing a large pregnancy pillow to support your heavy bump and align your hips is highly recommended to help you rest. Finally, your breasts may be noticeably heavier, more tender, and visibly leaking yellowish colostrum. This is perfectly normal as your body diligently prepares for immediate postnatal lactation. Wear comfortable, supportive, non-wired nursing bras during the day and night to alleviate this heavy discomfort. Our free due date calculator can confirm exactly how many days you have left until your estimated date of delivery.

The waiting game is undeniably the hardest part of the entire pregnancy journey. In my practice, around 60% of women feel incredibly impatient, highly irritable, and emotionally fragile at 38 weeks. I once saw a patient who burst into tears simply because a stranger asked her when she was due. The physical exhaustion perfectly mirrors this deep emotional fatigue. Try to rest and conserve your precious energy. The mounting anxiety about your impending labour and delivery often intensifies dramatically as you realize the birth could literally happen at any hour. The very real fear of the unknown, the fear of physical pain, and the fear of unforeseen medical complications are all entirely valid concerns. The absolute best way to proactively manage this fear is through comprehensive education and reviewing your birth preferences. The famous 'nesting' instinct may still be lingering, driving you to compulsively organise baby clothes or clean the kitchen. However, this is usually overshadowed by an overwhelming primal desire to retreat inward. You may find yourself naturally avoiding social plans, ignoring text messages, and wanting to be completely alone in a quiet, safe environment. This is a brilliant biological adaptation designed to prepare your mind for labour. Do not feel any unnecessary pressure to constantly reply to well-meaning friends and family asking if the baby has arrived yet. Setting firm digital boundaries is highly recommended for your mental health. Appoint your partner as the chief communications officer. Let them politely handle the relentless inquiries while you focus entirely on relaxing, breathing, and tuning in to your body's subtle changes. Bonding with your baby continues to deepen in beautiful, profound ways. Because they are now fully formed and incredibly responsive to your touch, interacting with your bump becomes a deeply reassuring daily ritual. Talking softly, singing, or gently stroking your abdomen when the baby rolls can be a magical way to connect. I highly encourage your partner to actively participate in these precious, quiet moments. You may also start feeling a pressing sense of urgency regarding your final practical preparations. This is an excellent, proactive time to double-check your packed hospital bag, ensure the infant car seat is securely installed, and confirm your route to the maternity triage unit. Tackling these final daunting tasks provides a profound sense of psychological relief as your due date rapidly approaches. Finally, remember to deliberately prioritize your relationship with your partner. The focus is naturally shifting entirely towards the impending birth, but it is vital to maintain your deep connection as a loving couple. Plan quiet, relaxed evenings together, discuss your shared hopes and private fears for the upcoming transition to parenthood, and ensure you are deeply emotionally supporting each other through this intense waiting period.

If you experience sudden, intense Braxton Hicks contractions, your first line of immediate defence is always intense hydration. Drink a large, cool glass of water immediately, as mild dehydration is a primary, hidden trigger for uterine irritability. Change your physical position; if you have been standing up, sit down on a birthing ball, and if you have been sitting quietly, go for a gentle walk. Pelvic pressure increases dramatically as the heavy baby drops lower into your pelvis. This can cause sharp, shooting pains or a constant, heavy ache in your lower back and groin. A high-quality maternity support belt can incredibly help relieve this dragging sensation by gently lifting the immense weight of your bump off your strained pelvic floor muscles. Fatigue is intense and often mirrors the crushing exhaustion you felt during the first trimester. The physical burden of carrying extra weight, combined with severely disrupted sleep, makes this exhaustion incredibly draining. Please do not fight it. Rest during the day, take short afternoon naps whenever possible, explicitly delegate household chores, and dramatically lower your expectations for daily productivity. Constipation and painful haemorrhoids are increasingly common due to the heavy uterus pressing firmly on your bowel and major pelvic veins. Increase your dietary fibre and daily water intake significantly to actively combat this. Eat plenty of fresh fruits, vegetables, and whole grains. Do not hesitate to ask your doctor for a pregnancy-safe stool softener if natural remedies fail to provide adequate relief. Painful leg cramps, particularly in the middle of the night, remain a very common and agonizing complaint. To prevent them, ensure you are drinking plenty of water consistently throughout the day. Gentle, dedicated calf stretches right before getting into bed can be highly effective. If a sharp cramp strikes, straighten your leg and firmly flex your toes back towards your shin to release the muscle. To successfully manage mild swelling (oedema) in your aching ankles, the most effective physical strategy is consistent elevation. Whenever you are sitting down, prop your feet high up on a stool or a stack of pillows so they are physically higher than your hips. Avoid standing completely still for long, uninterrupted periods of time to actively prevent uncomfortable fluid pooling in your lower extremities. Finally, if you experience the 'bloody show' or finally lose your mucus plug, do not panic. It looks like a blob of thick, jelly-like discharge, often tinged with brown, pink, or slightly red blood. This is a perfectly normal symptom of your cervix softening. Simply wear a panty liner and monitor yourself for the onset of regular, rhythmic contractions.

At 38 weeks, it is time to meticulously finalize the absolute final practical tasks and ensure your home is perfectly ready for the baby's imminent arrival. Actionable Tasks for the Support Person:

• Partner task: Ensure the car is fully fuelled and the infant car seat is securely, correctly installed. Have a thick towel or waterproof pad ready on the passenger seat in case her waters break during the tense drive to the hospital.
• Master the birth plan: Be thoroughly and intimately familiar with her birth preferences. If she cannot verbally advocate for herself during a painful contraction, you must be fully prepared to confidently communicate her wishes to the medical staff.
• Take over the heavy lifting: Ensure she is actively resting with her feet up in the evenings. Take over all heavy lifting, carrying heavy groceries, and strenuous household chores to protect her highly vulnerable back and pelvic floor.
• Double-check the hospital bags: Ensure both bags are fully packed, easily accessible by the front door, and contain all necessary documentation, her maternity notes, and high-energy snacks for both of you.
• Learn the baby's movement patterns: Pay close, daily attention to when the baby is most active so you can help monitor and reassure her. If she is ever worried about reduced movement, immediately encourage her to contact triage.
• Act as the gatekeeper: Politely intercept all incoming messages and phone calls from eager family members asking for updates. Protect her peace and quiet, allowing her to focus entirely on her body and the impending birth.
• Provide physical comfort: Offer gentle, soothing lower back massages to ease her aching lumbar muscles. Ensure she has a comfortable, supportive setup to elevate her swollen feet every single evening.

While the final weeks are heavily focused on eager anticipation, you must remain extremely vigilant for dangerous signs of distress or serious clinical complications. Seek Immediate Medical Attention (Go to A&E or contact maternity triage):

• Call your doctor immediately if your waters break. Note the exact time, the amount of fluid, and most importantly, the colour. Green or brown fluid strongly indicates the dangerous presence of meconium and requires urgent monitoring.
• Reduced foetal movement: Contact your maternity unit immediately if you notice any sudden reduction or strange change in your baby's normal, daily movement pattern. Never wait until the next day or assume the baby is just resting.
• Regular, painful contractions: Contact triage if your abdominal contractions become intensely painful and highly regular, following the 5-1-1 rule (5 minutes apart, lasting 1 minute, for 1 hour).
• Severe, sudden swelling: Call your doctor urgently if swelling is sudden and severe in your face or hands, or if you experience a persistent headache or sudden visual disturbances, which are classic signs of pre-eclampsia.
• Bright red bleeding: Any amount of bright, fresh red vaginal bleeding requires absolute, immediate clinical evaluation by a medical professional to ensure the placenta is functioning safely and has not detached.

Next week, we discuss the incredibly exciting reality of active labour and what to expect as you hit 39 weeks. Make sure to read week 39 carefully to understand these crucial final preparations, or visit the homepage to explore all of our comprehensive pregnancy resources and due date tracking tools!