Week 28 of Pregnancy: Fetal Brain Activity

from whattoexpect.com:

Are you dreaming about your baby? Your baby may be dreaming about you, too. Brain wave activity measured in a developing fetus shows different sleep cycles, including the rapid eye movement phase, the stage when dreaming occurs.

By now, your baby, who weighs in at about two and a half pounds and stands — or rather lies — at almost 16 inches (measured head to toe) has added blinking to his or her growing bag of tricks. (Outside in the real world, blinking is necessary to help keep foreign objects out of the eyes.) Other impressive new talents being added to your baby's roster in the womb include coughing, more intense sucking, and, perhaps most important, better breathing.

The good news is that babies born this week, though premature, have an excellent prognosis because their lungs have reached the point (for the most part) of maturity — so you too can breathe a little easier now. Of course, it's still best if a baby doesn't check out of that uterine hotel just yet — there's still a lot of growing and maturing to do over the next 12 weeks.