Pregnancy · Week by Week

Forty weeks,
one week at a time

Fetal development, common symptoms, what to expect, and practical checklists — calm guidance for every stage of your pregnancy.

W12

W20

W28

W36

Expectant mother gently cradling her pregnancy bump

Weeks 1–13

First Trimester

Week 8About the size of a raspberry

Pregnancy Week 8

At eight weeks, your pregnancy may not show yet, but a great deal is happening. Your baby is growing quickly and beginning to look more recognizably human.

3 tips6 to-dos1 safety notes

Read week 8

Week 12About the size of a lime

Pregnancy Week 12

Week 12 is a significant milestone — you're reaching the end of the first trimester. For many people, nausea begins to ease and the risk of miscarriage drops noticeably.

2 tips5 to-dos1 safety notes

Read week 12

Weeks 14–27

Second Trimester

Week 20About the size of a banana

Pregnancy Week 20

Congratulations — you're at the halfway point. Week 20 is when many people have their anatomy scan, and fetal movement is often felt for the first time around this stage.

2 tips6 to-dos1 safety notes

Read week 20

Weeks 28–40

Third Trimester

Week 28About the size of an eggplant

Pregnancy Week 28

Welcome to the third trimester. At week 28, your baby's lungs and brain are developing rapidly, and you're entering the final weeks of preparation before birth.

2 tips6 to-dos1 safety notes

Read week 28

Week 36About the size of a head of romaine lettuce

Pregnancy Week 36

At week 36, your baby is almost full-term. Many babies settle into a head-down position this week, and you may start to feel more pressure in your pelvis as the baby drops lower.

2 tips7 to-dos1 safety notes

Read week 36