Week 20

My Baby's Development

Your pregnancy is halfway there! 20 weeks into your pregnancy, your baby has grown significantly from the very first dividing cell. It’s now measures about 6.3 inches (16cm) from crown to rump and weighs about 11 ounces (312g). Your baby is taking up increasing space in your uterus and its continued growth will put pressure on your stomach, lungs, kidneys and bladder.

Your baby's skin is thickening and developing layers under the vernix caseosa (a protective, waxy coating). Hair and nails continue to grow.

My Body

Your health care provider may recommend you for an ultrasound of your baby. An ultrasound is a diagnostic test that uses sound waves to create an image on a monitor. It can determine the size and position of the fetus. During an ultrasound, any structural abnormalities of bones and organs that are visible can be determined. The umbilical cord, placenta and amniotic fluid can also be examined. If the position of the fetus allows, the sex of your baby can usually be determined by this week.