Taken from Babycenter.com:

Your baby is more than 11 inches long and weighs just over a pound. He may be able to feel your movements now, so put on some fun tunes and dance around the house. No matter what race your baby is, his skin is red and wrinkled at this stage and will likely look pink or reddish at birth. Blood vessels that show through your baby’s transparent skin cause this coloration. His true skin tone will develop over the course of his first year.Blood vessels in your baby’s lungs are developing to prepare him for breathing, but complete lung development will take many more months. The lungs are the last organ to fully develop in babies. That’s why premature babies (those born before 37 weeks) often have such a hard time breathing. Babies born this week have a chance of surviving with the help of intensive medical care, but their risk of serious complications is very high.