How your little girl is growing:
Head to rump, your baby is about 5 1/2 inches long (about the length of a bell pepper) and she weighs almost 7 ounces. She's busy flexing her arms and legs — movements that you'll start noticing more and more in the weeks ahead. Her blood vessels are visible through her thin skin, and her ears are now in their final position, although they're still standing out from her head a bit. A protective covering of myelin is beginning to form around her nerves, a process that will continue for a year after she's born. If you're having a girl, her uterus and fallopian tubes are formed and in place. If you're having a boy, his genitals are noticeable now, but he may hide them from you during an ultrasound.