How Your Baby Develops Between 6 and 13 Weeks of Pregnancy

Parents may notice that ultrasound views change from one week to another. Small differences in timing can affect which structures are visible during an early pregnancy appointment.

Development at Eight Weeks

At eight weeks, the embryo has grown noticeably since the earliest weeks. The head and body become easier to distinguish, while developing arms and legs continue taking shape.

An ultrasound during this stage may show movement or small body structures, depending on gestational age. 

What Changes During Nine Weeks

By nine weeks, the developing baby continues forming recognizable features. Facial structures, limbs, and internal organs continue developing, while overall growth becomes increasingly noticeable during this stage.

Ultrasound can provide parents with a closer look at development during early pregnancy. A 6-week 3D ultrasound may differ from later scans because the baby remains very small.

Development Around Ten Weeks

At ten weeks, the developing baby continues growing rapidly. Fingers and toes become more defined, while body proportions gradually change as development progresses through the first trimester.

Changes at Eleven Weeks