The length of your fetus is about 12 cm (from the head to the bottom of the hips)... his weight is about 190 grams.. his chest rises and falls like breathing.. his blood vessels can be seen behind his thin and transparent skin and his ears are in their final position.. for the growth and development of your baby's body organs. He recognized... from this age Pregnancy is best to sleep on your side or at least lean slightly to one side (especially the left side).. You are now in your original position Legs: Your baby will soon bend his arms and straighten up... Placenta: You will have an ultrasound next week or so that will locate the placenta and check your baby's growth and health... Blood vessels: Your baby's blood vessels can be seen behind his thin, clear skin....