Slide show: Fetal ultrasound
Image of a fetal ultrasound slide showing baby's profile at 11 weeks
Previous Next 3 of 14

During a fetal ultrasound, your health care provider rubs a small device called a transducer across your belly or inserts a probe into your vagina. High-frequency sound waves are translated into a pattern of light and dark areas — creating an image of your baby on a monitor.

In this slide, you see a baby's profile at 11 weeks of pregnancy, or nine weeks after conception. A baby's head makes up about half of his or her length at this stage.

See more Multimedia