Month 9: The Final Countdown
Weeks 37–40+ of Pregnancy
Month 9 is the final countdown. Your baby is fully developed and ready to meet you.
You have made it to the final month! Your baby is fully developed and putting on the finishing touches before making their grand entrance. This month can feel like the longest as you eagerly await meeting your little one. Remember that full term is anywhere from 37 to 42 weeks, so be patient if your baby needs a little extra time. Every day, your body and baby are preparing for the amazing journey of birth.
What is happening this month
Month 9 is all about final preparations and waiting. Your baby is considered full-term at 37 weeks, though most first babies arrive after their due date. Your baby continues to gain weight and their organs make final adjustments for life outside the womb. You may experience lightening as baby's head drops lower into your pelvis, which can make breathing easier but increases pelvic pressure.
Week-by-week development
Baby's immune system strengthens. The skull remains soft with gaps called fontanelles to ease delivery.
Most babies settle in the pelvis head-down. Kidneys and liver are fully functioning. Weight gain continues at 220–250 grams per week.
Baby is full-term. Lungs are mature. The digestive system is ready for milk. Lanugo hair has mostly disappeared.
Baby continues gaining weight. Antibodies continue to pass from you to baby. Baby is ready whenever they decide to arrive.
Your baby's development
By your due date, your baby typically measures about 48–53cm (19–21 inches) and weighs approximately 3–4kg, though healthy babies come in many sizes. Final developments include:
- All organs are fully mature and ready for independent life
- Fat continues accumulating, giving baby those adorable chubby cheeks
- Lungs produce plenty of surfactant for breathing air
- The digestive system contains meconium, which is the first bowel movement
- Antibodies from your immune system provide protection for early months
- Skull bones remain flexible with gaps to ease passage through the birth canal
- Baby practises breathing, sucking, and swallowing
- Most vernix has been shed, though some may remain in skin folds
- Baby is running out of room and movements may feel more like rolls than kicks
Size comparison
Your baby is about the size of a small watermelon
48–53 cm (19–21 inches) | 3–4 kgChanges in your body
The final month brings a mix of discomfort and anticipation. Your body is making final preparations for labour, and you may experience a range of symptoms that signal the approaching birth:
Lightening
Baby drops lower into the pelvis, easing breathing but increasing pelvic pressure
Mucus Plug
Loss of the mucus plug signals the cervix is beginning to prepare for labour, though timing is hard to predict
Nesting Urge
A sudden burst of energy to clean and organise before baby arrives
Contractions
Braxton Hicks increase in frequency; real contractions are regular, strong, and progressively closer together
Loose Stools
Your body naturally clears the bowels in preparation for labour
Insomnia
Discomfort and anticipation make sleep challenging in the final weeks
Important care tips
Weekly appointments
From week 36, you will have appointments every one to two weeks. Your healthcare provider will check baby's position, head engagement and heart rate, your blood pressure and urine. Membrane sweeps may be offered from week 40 to encourage labour naturally. Do not miss these important final checks.
Know the labour signs
True labour signs include regular contractions that get stronger, longer, and closer together, waters breaking as a gush or trickle, and a bloody show. Time contractions from the start of one to the start of the next. Contact your maternity unit when contractions are 5 minutes apart, lasting 1 minute, for at least 1 hour.
Final preparations
Review your birth preferences with your partner. Ensure your hospital bag is ready. Have your maternity notes to hand. Install baby's car seat if not done. Stock up on newborn essentials and prepare your home for your return with easy meals and a clean, ready space. Most importantly, try to rest and stay calm.
Going overdue
If you pass your due date, do not worry. It is completely normal, especially for first babies. Stay active with walks, try relaxation techniques, and continue monitoring movements. Your midwife will discuss monitoring and induction options if you reach 41 weeks. Trust that your baby will come when ready.
When to contact your midwife, maternity unit or call 999
If you experience any of the following, contact your midwife or go directly to your nearest maternity assessment unit. In an emergency, call 999.
- Regular contractions following the 5-1-1 rule, or as advised by your midwife
- Your waters break. Note the time and colour of the fluid
- Heavy vaginal bleeding (more than light spotting)
- Decreased, significantly increased, or absent fetal movement
- Severe abdominal pain that does not ease between contractions
- Severe headache, vision changes, or upper abdominal pain
- Difficulty breathing, calf tenderness, or swelling
- Any signs of infection or temperature above 37.6°C
- Any concerns about your or your baby's wellbeing
A final word
Soon you will be holding your baby in your arms. Whether your labour starts naturally or needs encouragement, trust your body and your healthcare team. Every pregnancy and birth is unique and special. The discomfort of labour is temporary, but the joy of meeting your baby lasts forever. You have grown this amazing little person for nine months. You are strong, capable, and ready. Congratulations on reaching this incredible milestone.
Frequently asked questions
In month 9, your baby is full-term at 37 weeks and ready for birth. Final preparations include lung maturation and baby dropping lower into the pelvis. Labour signs may begin at any time during this month.
Labour signs include regular contractions that intensify and get closer together, waters breaking, a bloody show, lower back pain, and nesting instinct. Contact your midwife or maternity unit when contractions are regular and strong.
A baby is considered full-term at 37 completed weeks of pregnancy. At this point, the baby's organs are mature enough for life outside the womb, though many babies continue developing beneficially until 40 weeks or beyond.
Pack comfortable clothes, toiletries, maternity pads, nursing bras, baby clothes and nappies, your maternity notes, important documents, and any personal comfort items for labour and recovery. Ensure baby's car seat is in the car.
Yes, it is completely normal to feel anxious about birth. Talk to your midwife about your concerns, practise relaxation techniques, and remember that your body is designed for this process. Your healthcare team are there to support you.
At 9 months, your baby is about the size of a small watermelon, weighing approximately 3–4kg and measuring around 48–53cm (19–21 inches) long. Every baby is different and healthy babies come in a wide range of sizes.
If you go past 40 weeks, you will have additional monitoring appointments. Most babies are born by 42 weeks, and induction will be offered between 41 and 42 weeks depending on your circumstances. Going a little overdue is very common, especially with first babies.
You should continue to feel regular movements until birth. While movements may feel different as space becomes more limited, any significant decrease should be reported to your midwife or maternity unit immediately. Do not wait until the next day.
