Learn about the stages of your pregnancy with our detailed week-by-week guide, detailing how your body is changing, plus the growth and development of your baby.
It may be hard to believe, but your developing baby's organs, such as her heart and liver, are already in place inside her tiny body.
In week 11 your baby has become quite an active little guy, kicking and swallowing away inside your womb.
In week 9 your baby is about the same size as a green olive. From the top of his head to the bottom of his buttocks, he's about 22 to 33 mm long.
Your baby is the size of a big cherry, but when it comes to shape, she looks more like a shrimp.
This week your baby has a growth spurt. He starts off the week the size of a BB pellet and finishes it off almost double the size—as big as a green pea!