6 Weeks: a sweet pea

Week 6:

Your baby is the size of a sweet pea this week. If you could see inside yourself, you'd find she has an oversized head in proportion to her body. Your baby’s facial features are forming with dark spots where the eyes are, openings where the nostrils will be, and pits to mark the ears.

Protruding buds that will become her arms and legs are even more noticeable now. Your baby’s hands and feet look like paddles. Other developments include the growth of the pituitary gland, which releases hormones, in the brain and muscle fibres. You can't hear it yet, but her heart (which has divided into the right and left chambers) is beating at about 150 beats a minute – twice the rate of yours.