SPECIAL OFFER: - Limited Time Only!
(The ad below will not display on your printed page)

Third Trimester: Images of Your Developing Baby

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 3rd trimester of pregnancy gives you a look at each week of development.
week 33 baby?s brain Week 33 (31 weeks from conception)

Fetal Size: Length, 12 inches, crown to rump; total length 19 1/2 inches. Weight, 4 1/2 pounds.

Fetal Development Milestones: Your baby is getting more plump each day.

What You're Seeing: Your baby-to-be's brain is continuing to grow and develop. In this image, the red and blue show blood flow to the part of his brain that lets the two halves of the brain communicate with one another.