He or she measures over 28cm and weighs up to 550 grams. Your baby does a regular 'workout' inside your womb. He or she turns from side to side and head over heels. Thanks to a fully developed inner ear, which controls balance, your baby may have a sense of whether he or she is upside-down or right side up in the womb.

Information provided by 4DScan. Visit them at www.4dscan.co.za.

Read all the other articles of our week by week series

Week 12

Week 13

Week 14

Week 15

Week 16

Week 17

Week 18

Week 19

Week 20

Week 21

Week 22

Week 24

Week 25

Week 26

Week 27

Week 28

Week 29

Week 30

Week 31

Week 32

Week 33

Week 34

Week 35

Week 36