Our babies’ skin is now covered with vernix caseosa, a greasy, cheeselike, white coating that protects their birthday suit from getting chapped or scratched. This week, the motor neurons in our babies’ brain -- the nerves that control muscle movement -- continue to develop, which means if Michelle hasn’t felt those first kicks yet, she will soon! There's so much going on these days, we may even be able to spot your babies’ gymnastics during a mid-pregnancy ultrasound -- usually administered between weeks 18 and 22. This checkup assesses our babies’ growth (the technician will begin to ID and measure the bones in their little bodies), let our doctor confirm or adjust  our due date.    it's amazing to see the babies’ kick, wave, and even somersault for the camera. You might also catch of them sucking a thumb or hiccupping. Plus, you'll get pictures to bring home for the brag book. We may have gotten pics at previous ultrasounds, but now our babies’ have got clearly identifiable features. This time, we may not need the technician to point out what you're looking at.