Which fruit or veggie is your baby this week? A Fun Week-by-Week Guide
One of the most exciting parts of pregnancy is tracking your baby’s growth, and what better way to visualise it than with familiar fruits and vegetables?
Each week, your little one is changing and growing, from a tiny poppy seed to a plump watermelon. In this guide, we’ll take you through your baby’s size week by week, helping you picture their development in a fun and easy way.
First Trimester
Second Trimester
Third Trimester
Our Pregnancy Journals are perfect for tracking your little one's growth week by week, featuring fun fruit and vegetable size comparisons along the way! Keep reading to find out more about your baby's development week-by week.
First Trimester (Weeks 1–12)
✨ Your baby starts as a tiny bundle of cells and quickly grows into a little human with a heartbeat, fingers, and toes.
Week 1-2 - Not yet measurable
Conception hasn’t happened yet, but your body is preparing!
---
Week 3 - Poppy seed
Fertilisation occurs, and the tiny embryo starts developing.
---
Week 4 - Sesame seed
Your baby is implanting into your uterus.
---
Week 5 - Strawberry seed
The first signs of a heartbeat appear!
---
Week 6 - Pea
Tiny facial features are starting to form.
---
Week 7 - Blueberry
Hands and feet begin developing.
---
Week 8 - Raspberry
Baby now has little fingers and toes!
---
Week 9 - Cherry
Baby’s tiny heart is fully developed and beating strong.
---
Week 10 - Olive
Organs are fully formed and starting to function.
---
Week 11 - Fig
Baby can move around (though you won’t feel it yet!).
---
Week 12 - Plum
Reflexes are developing – baby might start sucking their thumb!
Second Trimester (Weeks 13–27)
✨ This is the time for rapid growth, movement, and developing the senses.
Week 13 - Lemon
Fingerprints are forming, and baby’s bones are hardening.
---
Week 14 - Peach
Baby’s face is fully formed, and they can make expressions!
---
Week 15 - Apple
Baby’s legs are growing longer than their arms.
---
Week 16 - Avocado
You might start feeling tiny movements soon!
---
Week 17 - Pear
Baby’s heartbeat can be heard with a stethoscope.
---
Week 18 - Carrot
The nervous system is developing, and baby can now yawn and stretch.
---
Week 19 - Tomato
Baby’s skin is covered in vernix, a protective waxy layer.
---
Week 20 - Mango
Halfway there! Baby now has working taste buds.
---
Week 21 - Banana
Baby is moving a lot, and you may feel kicks.
---
Week 22 - Bell pepper
Baby’s eyes are developing, though they are still shut.
---
Week 23 - Papaya
Baby can start hearing your voice!
---
Week 24 - Ear of corn
Lungs are developing to prepare for breathing.
---
Week 25 - Swede
Baby’s hair is growing, and their startle reflex is kicking in.
---
Week 26 - Acorn squash
Baby’s eyes are starting to open!
---
Week 27 - Sweet potato
Brain activity is increasing, and baby can now dream.
Third Trimester (Weeks 28–40)
✨ Your little one is almost ready for the outside world—growing stronger, adding fat, and practising movements like blinking and breathing.
---
Week 28 - Cabbage
Baby can blink and respond to light.
---
Week 29 - Cauliflower
Muscles and lungs are getting stronger.
---
Week 30 - Broccoli
Baby is growing chubbier with developing brain power!
---
Week 31 - Coconut
Baby’s five senses are now fully developed.
---
Week 32 - Cantaloupe melon
Baby is practising breathing movements.
---
Week 33 - Butternut squash
Baby’s bones are hardening, but the skull remains soft.
---
Week 34 - Pineapple
Baby’s fingernails have fully grown in.
---
Week 35 - Honeydew melon
Baby is getting into position for birth.
---
Week 36 - Romaine lettuce
Baby’s liver and lungs are almost fully mature.
---
Week 37 - Swiss chard
Baby is now considered "early term" and ready to arrive anytime!
---
Week 38 - Rhubarb
Baby is shedding the last of their protective waxy coating.
---
Week 39 - Watermelon
Baby is full-term and just adding final fat layers.
---
Week 40 - Watermelon
It’s time! Baby is ready to make their grand entrance.
From a tiny poppy seed to a full-grown watermelon, your baby’s development is truly magical. Every week brings new milestones, and before you know it, you’ll be holding your little one in your arms.
Leave a comment