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Pregnant in week 38

In week 38 your baby is the size of a leek. It now has a firm grip and practises sucking and swallowing – ready for its first feed at the breast. Watch calmly for signs of labour, and call once too often rather than too little.

a leek
About the size ofa leek
Length49,8 cm
Weight3.205 g
Trimester3.
Written as37+0 – 37+6
~140/min

Week 38 of 40 · about 2 weeks to go

Your baby in week 38

Your baby measures around 50 centimetres and weighs about 3,100 grams. It is now plump and well formed, and the fat layers mean it can retain heat after birth.

Your baby has a firm grip and reacts to sound and touch. It eagerly practises sucking and swallowing, so it is ready to take the breast or bottle right after birth.

The bowel is filled with meconium, the first dark stool, which normally comes after birth. Most of the downy hair is gone, and the skin is smooth and covered by a thin layer of vernix.

Your body and symptoms in week 38

You are close to the finish, and labour can begin any time. Many experience a mix of heaviness, impatience and a sudden urge to get ready – the so-called nesting instinct.

The downward pressure, pelvic pain and frequent urination continue. You may notice more discharge and perhaps lose the mucus plug, which is a sign your body is preparing for birth.

Braxton Hicks contractions can come close and strong. If they become regular, closer and more painful, or your waters break, labour is on the way – contact the maternity unit.

Good advice for week 38

Call once too often rather than too little

If you are unsure about contractions, waters, movements or anything else, call the maternity unit. They are used to it and will always guide you.

Keep track of movements

Your baby should move right up to the birth. If you notice clearly fewer movements, contact the maternity unit immediately.

Give in to the nesting urge – in moderation

Many suddenly get energy to prepare. Enjoy it, but don't overexert yourself – your strength also needs to last for the birth itself.

Relax while you can

The last days are a waiting time. Try to enjoy the calm, watch a film, take a walk and recharge for the big day.

Checklists for this stage

Tick things off as you go – the list remembers where you got to, and you can share it with your partner.

Frequently asked questions in week 38

What is the nesting instinct?

The nesting instinct is a sudden urge to clean, tidy and prepare the home before birth. It is completely normal, but remember to save your strength.

How do I know my waters have broken?

It can be a sudden gush or a slow, uncontrollable trickle of clear fluid. If you are unsure whether it is amniotic fluid or urine, contact the maternity unit.

Can I go overdue now?

Your due date is an estimate, not a deadline. Only about 4% give birth on the due date itself, and most give birth within two weeks before or after. From week 41 you are followed more closely.

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