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

First Trimester: Images of Your Developing Baby

Do you know what to expect in the first trimester of pregnancy? 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 during the first trimester. These images reveal all the intricate details of your baby's growth. While most women normally receive one or two ultrasounds during pregnancy, this slideshow of the first trimester of pregnancy gives you a look at each week of development.
Week 11 Week 11 of Pregnancy

Fetal Size: Length, 1.61 inches; weight, 0.25 ounces.

Fetal Development Milestones: Chin and neck are developing. Facial features are becoming more defined. Baby's ears move higher on the head.

What You're Seeing: Baby-to-be is lying on her back with her head on the left side of the image and her legs pointing up. From this image, you can see that her neck is growing, separating her large head from the rest of her body. Her head still makes up more than 50% of her body size, which is normal. Facial bones are again seen as bright white areas in the profile.