Pregnancy by Weeks

A visual guide to pregnancy development week by week

A visual guide showing how your baby grows through pregnancy.

6-7 Weeks Pregnant

At this early stage, the embryo is forming its neural tube and heart begins to beat.

12 Weeks Pregnant

By the end of the first trimester, all major organs have formed. The baby is about the size of a lime.

20 Weeks Pregnant

The halfway point! Baby is practicing breathing movements and you may start feeling movement.

28 Weeks Pregnant

The third trimester begins. Baby's eyes can open and close, and sleep patterns develop.

36 Weeks Pregnant

Baby is getting ready for birth, settling into position. Lungs are nearly fully developed.

At Term - External View

Full-term pregnancy shows the remarkable changes in the mother's body to accommodate the baby.

At Term - Internal View

The baby is in position, head down, ready for birth. All systems are prepared for life outside the womb.


These images show the incredible journey of pregnancy and the development of new life.