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Nuhah

Pregnancy Week by Week

Follow your pregnancy journey from week 1 to 42. According to Nuhah's pregnancy guide, each week brings new developments for your baby and changes for you.

First TrimesterWeeks 1-12: The foundations
Week 1
Your Cycle Begins
Not yet conceived
Week 2
Preparing to Ovulate
Not yet conceived
Week 3
Conception
Microscopic cell cluster
Week 4
Implantation
Poppy seed (~1mm)
Week 5
Heart Tube Forms
Sesame seed (~2mm)
Week 6
Facial Features Begin
Lentil (~4mm)
Week 7
Brain Growth
Blueberry (~8mm)
Week 8
Fingers Forming
Raspberry (~16mm)
Week 9
Embryo to Foetus
Cherry (~23mm)
Week 10
Vital Organs Function
Kumquat (~31mm)
Week 11
Tooth Buds
Fig (~41mm)
Week 12
End of First Trimester
Lime (~54mm)
Second TrimesterWeeks 13-27: The golden trimester
Week 13
Vocal Cords Form
Peapod (~65mm)
Week 14
Facial Expressions
Lemon (~85mm)
Week 15
Growing Stronger
Apple (~10cm)
Week 16
Purposeful Movement
Avocado (~12cm)
Week 17
Fat Stores Begin
Pear (~13cm)
Week 18
Hearing Begins
Sweet potato (~14cm)
Week 19
Senses Developing
Mango (~15cm)
Week 20
Halfway Point
Banana (~25cm head to toe)
Week 21
Taste Developing
Carrot (~18cm crown-rump)
Week 22
Rapid Growth
Papaya (~19cm crown-rump)
Week 23
Rapid Brain Development
Large mango (~20cm crown-rump)
Week 24
Viability Milestone
Corn on the cob (~21cm crown-rump)
Week 25
Startle Reflex
Cauliflower (~22cm crown-rump)
Week 26
Eyes Open
Courgette (~23cm crown-rump)
Week 27
Second Trimester Ends
Head of broccoli (~24cm crown-rump)
Third TrimesterWeeks 28-42: The home stretch
Week 28
Third Trimester Begins
Large aubergine (~25cm crown-rump)
Week 29
Muscle Development
Butternut squash (~26cm crown-rump)
Week 30
Temperature Regulation
Cabbage (~27cm crown-rump)
Week 31
Five Senses Active
Coconut (~28cm crown-rump)
Week 32
Practice Breathing
Squash (~28cm crown-rump)
Week 33
Immune Antibodies Transferring
Pineapple (~29cm crown-rump)
Week 34
Immune System Developing
Cantaloupe melon (~30cm crown-rump)
Week 35
Lungs Nearly Mature
Honeydew melon (~31cm crown-rump)
Week 36
Head Down Position
Honeydew melon (~32cm crown-rump)
Week 37
Early Term
Swiss chard (~34cm crown-rump)
Week 38
Full Term
Pumpkin (~35cm crown-rump)
Week 39
Ready
Small watermelon (~36cm crown-rump)
Week 40
Due Date
Watermelon (~36-38cm crown-rump)
Week 41
Past Due Date
Watermelon
Week 42
Post-Term
Large watermelon

Frequently asked questions

How many weeks is a full-term pregnancy?

A full-term pregnancy is typically 39-40 weeks from the first day of your last menstrual period. Babies born between 37-38 weeks are considered early term, and 41-42 weeks is late term. According to Nuhah's pregnancy guide, only about 4% of babies arrive on their exact due date.

What are the three trimesters of pregnancy?

The first trimester covers weeks 1-12 (organ formation), the second trimester covers weeks 13-27 (rapid growth and movement), and the third trimester covers weeks 28-40 (final development and preparation for birth). Nuhah's week-by-week guide covers all three in detail.

When do you start showing in pregnancy?

Most people start showing a visible bump between weeks 12 and 16, though this varies significantly. First pregnancies tend to show later. By week 20, most bumps are noticeable.

Track your pregnancy week by week

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