1. Week by Week

Pregnancy Week by Week Guide

See exactly how your baby is growing today, what to expect this week, and gentle guidance from doctors and parents who've been there.

First Trimester - Weeks 1 to 12

The first trimester covers weeks 1 to 12 of pregnancy.

Baby at week 1
Week 1

Your Journey Begins

Your pregnancy journey officially begins with the first day of your last menstrual period (LMP). You are not pregnant yet, your body is preparing for ovulation and creating the ideal environment for fertilisation.

Baby at week 2
Week 2

Ovulation & Fertilisation

Your body continues to prepare for pregnancy and your ovaries get ready to release a mature egg. Around the end of this week, ovulation usually occurs, creating the opportunity for fertilisation if sperm meets the egg.

Baby at week 3
Week 3

Implantation

This week, fertilisation may happen if the egg and sperm meet. The fertilised egg (zygote) will soon implant into the uterine lining. Foundational layers that will become your baby's organs are forming.

Baby at week 4
Week 4

A Tiny Embryo

Your baby is about the size of a poppy seed. Their brain, spinal cord, and other important organs are beginning to develop.

Baby at week 5
Week 5

Heart Begins Beating

Your baby is about the size of an apple seed. The heart has started to form and is beginning to beat, while the brain, spinal cord, and other organs are developing quickly.

Baby at week 6
Week 6

Facial Features Forming

Your baby is about the size of a sweet pea. Small buds that will become the arms and legs are starting to grow, and morning sickness may begin as hCG levels peak.

Second Trimester - Weeks 13 to 26

The second trimester covers weeks 13 to 26 of pregnancy.

Baby at week 13
Week 13

Welcome to Trimester 2

Your baby is about the size of a plum. Fingerprints are beginning to form, and the placenta is taking over more of the hormone support. Movement is still subtle and not yet felt.

Baby at week 14
Week 14

Active Baby

Your baby is about the size of a lemon. They can squint, frown, and grimace, while fine hair called lanugo begins to cover the body. Movement is active but usually too gentle to feel.

Baby at week 15
Week 15

Bones Hardening

Your baby is about the size of an apple. Bones are beginning to harden, and your little one can sense light and practise breathing motions. Tiny movements continue in the womb.

Baby at week 16
Week 16

First Kicks Possible

Your baby is about the size of an avocado. You may soon start to feel the first flutters of movement, while the eyes become sensitive to light and the ears continue developing.

Baby at week 17
Week 17

Fat Stores Developing

Your baby is about the size of a turnip and has started storing fat for warmth and energy after birth. Movement is becoming stronger, and you may notice gentle flutters.

Baby at week 18
Week 18

Yawning & Hiccupping

Your baby is about the size of a bell pepper. Yawning, hiccupping, and stretching have begun, and the anatomy scan is often scheduled around this time. Movements may feel like flutters or taps.

Third Trimester - Weeks 27 to 40

The third trimester covers weeks 27 to 40 of pregnancy.

Baby at week 27
Week 27

Welcome to Trimester 3

Your baby is about the size of a small cauliflower. Sleep and wake cycles are becoming more regular, and the brain continues to grow rapidly. Movements are often strong and easier to track.

Baby at week 28
Week 28

Brain Takes Shape

Your baby is about the size of an large eggplant. The brain is developing quickly and can respond more clearly to light and sound. Kicks, jabs, and rolls may feel stronger.

Baby at week 29
Week 29

Muscles Strengthening

Your baby is about the size of a butternut squash. Muscles and lungs c - Constipation: Natural remedies, such as a high-fibre diet and drinking water throughout the day, may help. Regular exercise can also help relieve constipation, even when you’re not pregnant. - Leg cramps: If you do get a cramp, gently stretch your leg, flexing your foot and pulling your toes back toward you. Stretching throughout the day and just before you go to bed may help too. Make sure you load up on calcium-rich foods like milk, yogurt, paneer etc. Constipation is common during pregnancy and can cause abdominal pain or discomfort, infrequent bowel movements, and hard stools. Eat a high-fibre diet including fruits, vegetables, breakfast cereals, wholegrain breads etc. Add a bit of bran to your regular roti dough to amp up the fibre content. Walking, swimming, and other moderate exercise for 20-30 minutes, three-four times a week can also help stimulate the bowels.

Baby at week 30
Week 30

Vision Developing

Your baby is about the size of a small cabbage. Eyesight is developing, although vision will still be blurry after birth. Strong kicks and stretches are often easy to feel now.

Baby at week 31
Week 31

Rapid Brain Development

Your baby is about the size of a green coconut. The brain and nervous system are nearing completion, and movements can feel very noticeable.

Baby at week 32
Week 32

Practising Breathing

Your baby is about the size of a papaya. Breathing movements are being practised, and fingernails and toenails are now fully grown. Movements may feel tighter as space becomes limited.

Helpful Pregnancy Articles

Frequently Asked Questions

Pregnancy Week by Week Guide | Parentune