Your pregnancy week by week

pregnancy belly

by Stephanie Spencer |
Updated on

It’s such an exciting time when you’re pregnant, there are so many changes going on within your body as your baby grows.

Follow the links below to find out each of the key milestone moments for each week of your pregnancy including symptoms, baby development, body changes and your baby’s position.

Pregnancy stages line. Nine months divided into three stages, trimesters, changes in female body, fetal development. Vector flat style cartoon illustration isolated on white background

Your first trimester: What to expect!

Week 1

Week 2

Week 3

Week 4

Week 5

Week 6

Week 7

Week 8

Week 9

Week 10

Week 11

Week 12

Your second trimester: scans and what is a MAT B1 form

Week 13

Week 14

Week 15

Week 16

Week 17

Week 18

Week 19

Week 20

Week 21

Week 22

Week 23

Week 24

Your third trimester: the final countdown!

Week 25

Week 26

Week 27

Week 28

Week 29

Week 30

Week 31

Week 32

Week 33

Week 34

Week 35

Week 36
Week 37

Week 38

Week 39

Week 40

Week 41

Week 42

Finding out the sex of your baby – the pros and cons

What will my baby look like?

How big is my baby? Week by week in fruit and veg!

Brilliant ways to bond with your bump

Just so you know, whilst we may receive a commission or other compensation from the links on this website, we never allow this to influence product selections - read why you should trust us
How we write our articles and reviews
Mother & Baby is dedicated to ensuring our information is always valuable and trustworthy, which is why we only use reputable resources such as the NHS, reviewed medical papers, or the advice of a credible doctor, GP, midwife, psychotherapist, gynaecologist or other medical professionals. Where possible, our articles are medically reviewed or contain expert advice. Our writers are all kept up to date on the latest safety advice for all the products we recommend and follow strict reporting guidelines to ensure our content comes from credible sources. Remember to always consult a medical professional if you have any worries. Our articles are not intended to replace professional advice from your GP or midwife.