Your developing baby – week 6

By the time you're 6 weeks pregnant, your baby is about the size of a lentil. Your baby's:

• Lungs are beginning to form
• Brain and nervous system are quickly developing
• Arm and leg buds have lengthened, with feet and hands starting to appear
• Fingers and toes are starting to develop
• Head is developing a small sac on each side where the eyes will form

The inner ears, digestive system, and respiratory system are also starting to develop.