We've partnered with the American Institute of Ultrasound Medicine (AIUM), Johns Hopkins, and the March of Dimes to create this unique peak into Baby's development inside the womb. These images reveal all the intricate details of your baby's growth -- from a collection of cells to a full-term newborn. While most women may only receive one or two ultrasounds during pregnancy, which is normal, this slideshow of the 1st trimester of pregnancy gives you a look at each week of development.
Week 11 in 3-D (9 weeks from conception)
Fetal Size: Length, 1.61 inches; weight, 0.25 ounces.
Fetal Development Milestones: Fingers and toes are now visible on an ultrasound. Baby's genitalia are forming but not visible by ultrasound.
What You're Seeing: In this 3-D picture, notice that Baby's delicate facial features are more visible. Muscles and bones are building in baby's arms and legs. The baby has slung the umbilical cord over one shoulder. A close look also reveals tiny fingers and toes. If the image were live, you would be able to see the developing baby's jerky movements.